How Do You Solve a Word Problem Using a Proportion?

How Do You Solve a Word Problem Using a Proportion?

Note:

This tutorial provides a great real world application of math. You'll see how to use the scale from a blueprint of a house to help find the actual height of the house. This tutorial shows you how to use a proportion to solve!

Keywords:

problem

word problem

word

translate

translate words to algebra

proportion

ratio

fraction

cross multiplication

means extremes

solve

equation

Background Tutorials

communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate

Ratios are everywhere! The scale on a map or blueprint is a ratio. Ingredients sometimes need to be mixed using ratios such as the ratio of water to cement mix when making cement. Watch this tutorial to learn about ratios. Then think of some ratios you've encountered before!

Further Exploration

Write and solve equations involving direct variation

Want to solve a percent proportion? Just use the means extremes property of proportions to cross multiply! Solve for the variable, and you have your answer! Learn how with this tutorial.