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Finding the Fourth Proportional to 7,793.78, 11,691.27 and 3,847.16

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Solution

The fourth proportional to 7,793.78, 11,691.27 and 3,847.16 is: 5,771.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.78 : 11,691.27 = 3,847.16 : x
  2. Step 2: Convert to fraction form
    7,793.78/11,691.27 = 3,847.16/x
  3. Step 3: Cross multiply
    7,793.78x = 11,691.27 × 3,847.16
  4. Step 4: Simplify right side
    7,793.78x = 44,978,215.52
  5. Step 5: Solve for x
    x = 44,978,215.52/7,793.78
  6. Step 6: Final answer
    x = 5,771.04

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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.