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Finding the Fourth Proportional to 8,480.70, 12,722.67 and 2,934.90

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Solution

The fourth proportional to 8,480.70, 12,722.67 and 2,934.90 is: 4,402.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.70 : 12,722.67 = 2,934.90 : x
  2. Step 2: Convert to fraction form
    8,480.70/12,722.67 = 2,934.90/x
  3. Step 3: Cross multiply
    8,480.70x = 12,722.67 × 2,934.90
  4. Step 4: Simplify right side
    8,480.70x = 37,339,764.18
  5. Step 5: Solve for x
    x = 37,339,764.18/8,480.70
  6. Step 6: Final answer
    x = 4,402.91

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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.