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Finding the Fourth Proportional to 6,479.20, 8,932.17 and 5,480.44

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Solution

The fourth proportional to 6,479.20, 8,932.17 and 5,480.44 is: 7,555.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.20 : 8,932.17 = 5,480.44 : x
  2. Step 2: Convert to fraction form
    6,479.20/8,932.17 = 5,480.44/x
  3. Step 3: Cross multiply
    6,479.20x = 8,932.17 × 5,480.44
  4. Step 4: Simplify right side
    6,479.20x = 48,952,221.75
  5. Step 5: Solve for x
    x = 48,952,221.75/6,479.20
  6. Step 6: Final answer
    x = 7,555.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.