Finding the Fourth Proportional to 2,387.54, 3,581.91 and 744.09
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Solution
The fourth proportional to 2,387.54, 3,581.91 and 744.09 is: 1,116.32
Step by Step Solution
- Step 1: Write the proportion equation
2,387.54 : 3,581.91 = 744.09 : x - Step 2: Convert to fraction form
2,387.54/3,581.91 = 744.09/x - Step 3: Cross multiply
2,387.54x = 3,581.91 × 744.09 - Step 4: Simplify right side
2,387.54x = 2,665,263.41 - Step 5: Solve for x
x = 2,665,263.41/2,387.54 - Step 6: Final answer
x = 1,116.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.