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Finding the Fourth Proportional to 8,761.62, 13,144.17 and 2,840.01

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Solution

The fourth proportional to 8,761.62, 13,144.17 and 2,840.01 is: 4,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.62 : 13,144.17 = 2,840.01 : x
  2. Step 2: Convert to fraction form
    8,761.62/13,144.17 = 2,840.01/x
  3. Step 3: Cross multiply
    8,761.62x = 13,144.17 × 2,840.01
  4. Step 4: Simplify right side
    8,761.62x = 37,329,609.54
  5. Step 5: Solve for x
    x = 37,329,609.54/8,761.62
  6. Step 6: Final answer
    x = 4,260.58

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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.