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Finding the Fourth Proportional to 6,479.17, 8,932.20 and 5,480.44

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Solution

The fourth proportional to 6,479.17, 8,932.20 and 5,480.44 is: 7,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.17 : 8,932.20 = 5,480.44 : x
  2. Step 2: Convert to fraction form
    6,479.17/8,932.20 = 5,480.44/x
  3. Step 3: Cross multiply
    6,479.17x = 8,932.20 × 5,480.44
  4. Step 4: Simplify right side
    6,479.17x = 48,952,386.17
  5. Step 5: Solve for x
    x = 48,952,386.17/6,479.17
  6. Step 6: Final answer
    x = 7,555.35

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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.