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Finding the Fourth Proportional to 3,778.38, 5,671.22 and 3,694.55

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Solution

The fourth proportional to 3,778.38, 5,671.22 and 3,694.55 is: 5,545.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.38 : 5,671.22 = 3,694.55 : x
  2. Step 2: Convert to fraction form
    3,778.38/5,671.22 = 3,694.55/x
  3. Step 3: Cross multiply
    3,778.38x = 5,671.22 × 3,694.55
  4. Step 4: Simplify right side
    3,778.38x = 20,952,559.02
  5. Step 5: Solve for x
    x = 20,952,559.02/3,778.38
  6. Step 6: Final answer
    x = 5,545.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.