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Finding the Fourth Proportional to 8,387.01, 12,579.03 and 2,542.19

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Solution

The fourth proportional to 8,387.01, 12,579.03 and 2,542.19 is: 3,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.01 : 12,579.03 = 2,542.19 : x
  2. Step 2: Convert to fraction form
    8,387.01/12,579.03 = 2,542.19/x
  3. Step 3: Cross multiply
    8,387.01x = 12,579.03 × 2,542.19
  4. Step 4: Simplify right side
    8,387.01x = 31,978,221.38
  5. Step 5: Solve for x
    x = 31,978,221.38/8,387.01
  6. Step 6: Final answer
    x = 3,812.83

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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.