Question

Set up a proportion and solve.

If 4 containers of yogurt cost $2.00, find the cost of 5 containers of yogurt.


Five containers of yogurt will cost what?

Answer 1

Answer: $2.5 for 5 containers of yogurt

Explanation:

To set up a proportion for this problem, we will have the 4 containers on the left with the 5 containers on the right and the container amount in the numerator with the dollar amount in the denominator. Let x be the unknown amount that we are solving for.

`\dispalystyle \frac{4\text{ containers}}{\$2} =\frac{5\text{ containers}}{\$x}`

Now, we will cross-multiply and isolate the variable using inverse operations.

4 * x = 2 * 5

4x = 10

x = $2.5