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Finding the Fourth Proportional to 6,493.75, 8,961.14 and 4,105.02

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Solution

The fourth proportional to 6,493.75, 8,961.14 and 4,105.02 is: 5,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,493.75 : 8,961.14 = 4,105.02 : x
  2. Step 2: Convert to fraction form
    6,493.75/8,961.14 = 4,105.02/x
  3. Step 3: Cross multiply
    6,493.75x = 8,961.14 × 4,105.02
  4. Step 4: Simplify right side
    6,493.75x = 36,785,658.92
  5. Step 5: Solve for x
    x = 36,785,658.92/6,493.75
  6. Step 6: Final answer
    x = 5,664.78

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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.