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Finding the Fourth Proportional to 6,455.70, 8,906.22 and 3,937.41

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Solution

The fourth proportional to 6,455.70, 8,906.22 and 3,937.41 is: 5,432.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.70 : 8,906.22 = 3,937.41 : x
  2. Step 2: Convert to fraction form
    6,455.70/8,906.22 = 3,937.41/x
  3. Step 3: Cross multiply
    6,455.70x = 8,906.22 × 3,937.41
  4. Step 4: Simplify right side
    6,455.70x = 35,067,439.69
  5. Step 5: Solve for x
    x = 35,067,439.69/6,455.70
  6. Step 6: Final answer
    x = 5,432.01

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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.