Home / 3,731.27-5,149.10-2,778.44

Finding the Fourth Proportional to 3,731.27, 5,149.10 and 2,778.44

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Solution

The fourth proportional to 3,731.27, 5,149.10 and 2,778.44 is: 3,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.27 : 5,149.10 = 2,778.44 : x
  2. Step 2: Convert to fraction form
    3,731.27/5,149.10 = 2,778.44/x
  3. Step 3: Cross multiply
    3,731.27x = 5,149.10 × 2,778.44
  4. Step 4: Simplify right side
    3,731.27x = 14,306,425.77
  5. Step 5: Solve for x
    x = 14,306,425.77/3,731.27
  6. Step 6: Final answer
    x = 3,834.20

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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.