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Finding the Fourth Proportional to 1,658.13, 2,487.26 and 503.88

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Solution

The fourth proportional to 1,658.13, 2,487.26 and 503.88 is: 755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.13 : 2,487.26 = 503.88 : x
  2. Step 2: Convert to fraction form
    1,658.13/2,487.26 = 503.88/x
  3. Step 3: Cross multiply
    1,658.13x = 2,487.26 × 503.88
  4. Step 4: Simplify right side
    1,658.13x = 1,253,280.57
  5. Step 5: Solve for x
    x = 1,253,280.57/1,658.13
  6. Step 6: Final answer
    x = 755.84

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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.