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Finding the Fourth Proportional to 1,037.15, 1,553.64 and 625.04

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Solution

The fourth proportional to 1,037.15, 1,553.64 and 625.04 is: 936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.15 : 1,553.64 = 625.04 : x
  2. Step 2: Convert to fraction form
    1,037.15/1,553.64 = 625.04/x
  3. Step 3: Cross multiply
    1,037.15x = 1,553.64 × 625.04
  4. Step 4: Simplify right side
    1,037.15x = 971,079.38
  5. Step 5: Solve for x
    x = 971,079.38/1,037.15
  6. Step 6: Final answer
    x = 936.30

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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.