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Finding the Fourth Proportional to 8,591.22, 12,889.11 and 2,747.94

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Solution

The fourth proportional to 8,591.22, 12,889.11 and 2,747.94 is: 4,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.22 : 12,889.11 = 2,747.94 : x
  2. Step 2: Convert to fraction form
    8,591.22/12,889.11 = 2,747.94/x
  3. Step 3: Cross multiply
    8,591.22x = 12,889.11 × 2,747.94
  4. Step 4: Simplify right side
    8,591.22x = 35,418,500.93
  5. Step 5: Solve for x
    x = 35,418,500.93/8,591.22
  6. Step 6: Final answer
    x = 4,122.64

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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.