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Finding the Fourth Proportional to 8,092.80, 12,138.89 and 2,545.92

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Solution

The fourth proportional to 8,092.80, 12,138.89 and 2,545.92 is: 3,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,092.80 : 12,138.89 = 2,545.92 : x
  2. Step 2: Convert to fraction form
    8,092.80/12,138.89 = 2,545.92/x
  3. Step 3: Cross multiply
    8,092.80x = 12,138.89 × 2,545.92
  4. Step 4: Simplify right side
    8,092.80x = 30,904,630.10
  5. Step 5: Solve for x
    x = 30,904,630.10/8,092.80
  6. Step 6: Final answer
    x = 3,818.78

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1.5x scale

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.