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Finding the Fourth Proportional to 8,855.50, 13,285.20 and 2,934.22

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Solution

The fourth proportional to 8,855.50, 13,285.20 and 2,934.22 is: 4,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.50 : 13,285.20 = 2,934.22 : x
  2. Step 2: Convert to fraction form
    8,855.50/13,285.20 = 2,934.22/x
  3. Step 3: Cross multiply
    8,855.50x = 13,285.20 × 2,934.22
  4. Step 4: Simplify right side
    8,855.50x = 38,981,705.15
  5. Step 5: Solve for x
    x = 38,981,705.15/8,855.50
  6. Step 6: Final answer
    x = 4,401.98

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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.