If a recipe requires 3 cups of sugar for 4 cups of flour how much flour if the Baker uses 2 cups of sugar

He would need 1.5 cups of flour.

Step-by-step explanation:

In order to find the amount in the new recipe, start with creating a proportion. On the left side, put the ratio given. On the right, put the new one using x for the amount of flour.

3/4 = 2/x

Now cross multiply to solve

2 * 3 = 4 * x

6 = 4x

1.5 = x