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Finding the Fourth Proportional to 8,581.29, 12,871.80 and 2,737.86

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Solution

The fourth proportional to 8,581.29, 12,871.80 and 2,737.86 is: 4,106.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.29 : 12,871.80 = 2,737.86 : x
  2. Step 2: Convert to fraction form
    8,581.29/12,871.80 = 2,737.86/x
  3. Step 3: Cross multiply
    8,581.29x = 12,871.80 × 2,737.86
  4. Step 4: Simplify right side
    8,581.29x = 35,241,186.35
  5. Step 5: Solve for x
    x = 35,241,186.35/8,581.29
  6. Step 6: Final answer
    x = 4,106.75

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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.