Proportions - Concept

Concept Concept (1)

We can find unknown quantities when we know similar ratios for comparison, using proportions. We find proportions often in word problems, for example those involving baking ingredients, and in comparing similar figures in Geometry. We can represent an unknown quantity in a proportion with a variable, and then solve it using one-step, two-step, or multi-step equation methods.

Sample Sample Problems (3)

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Proportions - Problem 1


-5 = t
2 -8
Problem 1
How to solve proportions when x is in the numerator.
Proportions - Problem 2


m + 3 = 12
5 4
Problem 2
How to solve proportions when one numerator is an expression with x.