In this Education video tutorial you will learn how to solve a word problem that involves proportions. To solve such problems you got to express the scenario in proportions. For example, in the problem, 'Jacob ran 10 miles in 80 minutes'; this rate can be expressed as 10miles/ 80 minutes. The second part of the problem is to find out 'at that rate how far would he run in 2.5 hours'? 'How far' being a variable, write it as 'x' and this can be expressed as x/ 2.5 hours. So, the complete equation now becomes 10miles/ 80 minutes = x/ 2.5 hours. Now converting 2.5 hours to minutes, you get 150minutes. So, the equation now becomes 10miles/ 80 minutes = x/ 150 minutes. Now doing cross multiplication we get 1500 = 80x, or x = 1500/80 = 18.75. Hence, the answer is at that rate Jacob will run 18.75 miles in 2.5 hours. This is how you solve word problems with proportions.
 Hot
 Latest

How To: Find a missing coordinate given: coordinate & equation

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Draw a circle with a compass for Geometry

How To: Find the Percent Given Two Numbers

How To: Subtract a mixed number from a proper fraction in basic math

How To: Convert Fahrenheit to Celsius with a formula

How To: Simplify a complex fraction w/ binomial denominators

How To: Perform short division

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the coordinate of a point

How To: Use the ratio formula to find coordinates of a point

How To: Find the equation of a circle given: center & tangent

How To: Find a slope of a straight line with: Ax + By + C = 0

How To: Divide small numbers by big numbers

How To: Find the Radius of a Circle from Arc Length

How To: Cancel out in basic algebra

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the value of a variable in an algebraic equation

How To: Find the formula of a piecewise function given a graph

How To: Find a missing coordinate given: coordinate & equation

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Draw a circle with a compass for Geometry

How To: Find the Percent Given Two Numbers

How To: Subtract a mixed number from a proper fraction in basic math

How To: Convert Fahrenheit to Celsius with a formula

How To: Simplify a complex fraction w/ binomial denominators

How To: Perform short division

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the coordinate of a point

How To: Use the ratio formula to find coordinates of a point

How To: Find the equation of a circle given: center & tangent

How To: Find a slope of a straight line with: Ax + By + C = 0

How To: Divide small numbers by big numbers

How To: Find the Radius of a Circle from Arc Length

How To: Cancel out in basic algebra

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the value of a variable in an algebraic equation

How To: Find the formula of a piecewise function given a graph
Be the First to Comment
Share Your Thoughts