Home / 3,129.27-4,338.13-2,962.82

Finding the Fourth Proportional to 3,129.27, 4,338.13 and 2,962.82

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Solution

The fourth proportional to 3,129.27, 4,338.13 and 2,962.82 is: 4,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.27 : 4,338.13 = 2,962.82 : x
  2. Step 2: Convert to fraction form
    3,129.27/4,338.13 = 2,962.82/x
  3. Step 3: Cross multiply
    3,129.27x = 4,338.13 × 2,962.82
  4. Step 4: Simplify right side
    3,129.27x = 12,853,098.33
  5. Step 5: Solve for x
    x = 12,853,098.33/3,129.27
  6. Step 6: Final answer
    x = 4,107.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.