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Finding the Fourth Proportional to 7,321.52, 10,982.42 and 2,641.88

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Solution

The fourth proportional to 7,321.52, 10,982.42 and 2,641.88 is: 3,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.52 : 10,982.42 = 2,641.88 : x
  2. Step 2: Convert to fraction form
    7,321.52/10,982.42 = 2,641.88/x
  3. Step 3: Cross multiply
    7,321.52x = 10,982.42 × 2,641.88
  4. Step 4: Simplify right side
    7,321.52x = 29,014,259.90
  5. Step 5: Solve for x
    x = 29,014,259.90/7,321.52
  6. Step 6: Final answer
    x = 3,962.87

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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.