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Finding the Fourth Proportional to 8,778.44, 13,167.77 and 2,934.90

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Solution

The fourth proportional to 8,778.44, 13,167.77 and 2,934.90 is: 4,402.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.44 : 13,167.77 = 2,934.90 : x
  2. Step 2: Convert to fraction form
    8,778.44/13,167.77 = 2,934.90/x
  3. Step 3: Cross multiply
    8,778.44x = 13,167.77 × 2,934.90
  4. Step 4: Simplify right side
    8,778.44x = 38,646,073.50
  5. Step 5: Solve for x
    x = 38,646,073.50/8,778.44
  6. Step 6: Final answer
    x = 4,402.38

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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.