Finding the Fourth Proportional to 2,487.02, 3,730.49 and 638.12
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Solution
The fourth proportional to 2,487.02, 3,730.49 and 638.12 is: 957.17
Step by Step Solution
- Step 1: Write the proportion equation
2,487.02 : 3,730.49 = 638.12 : x - Step 2: Convert to fraction form
2,487.02/3,730.49 = 638.12/x - Step 3: Cross multiply
2,487.02x = 3,730.49 × 638.12 - Step 4: Simplify right side
2,487.02x = 2,380,500.28 - Step 5: Solve for x
x = 2,380,500.28/2,487.02 - Step 6: Final answer
x = 957.17
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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.