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Finding the Fourth Proportional to 8,871.31, 13,306.05 and 2,948.59

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Solution

The fourth proportional to 8,871.31, 13,306.05 and 2,948.59 is: 4,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.31 : 13,306.05 = 2,948.59 : x
  2. Step 2: Convert to fraction form
    8,871.31/13,306.05 = 2,948.59/x
  3. Step 3: Cross multiply
    8,871.31x = 13,306.05 × 2,948.59
  4. Step 4: Simplify right side
    8,871.31x = 39,234,052.70
  5. Step 5: Solve for x
    x = 39,234,052.70/8,871.31
  6. Step 6: Final answer
    x = 4,422.58

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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.