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Finding the Fourth Proportional to 6,480.39, 8,935.88 and 4,380.87

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Solution

The fourth proportional to 6,480.39, 8,935.88 and 4,380.87 is: 6,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.39 : 8,935.88 = 4,380.87 : x
  2. Step 2: Convert to fraction form
    6,480.39/8,935.88 = 4,380.87/x
  3. Step 3: Cross multiply
    6,480.39x = 8,935.88 × 4,380.87
  4. Step 4: Simplify right side
    6,480.39x = 39,146,906.71
  5. Step 5: Solve for x
    x = 39,146,906.71/6,480.39
  6. Step 6: Final answer
    x = 6,040.83

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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.