Home / 3,930.33-5,426.24-2,734.87

Finding the Fourth Proportional to 3,930.33, 5,426.24 and 2,734.87

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Solution

The fourth proportional to 3,930.33, 5,426.24 and 2,734.87 is: 3,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.33 : 5,426.24 = 2,734.87 : x
  2. Step 2: Convert to fraction form
    3,930.33/5,426.24 = 2,734.87/x
  3. Step 3: Cross multiply
    3,930.33x = 5,426.24 × 2,734.87
  4. Step 4: Simplify right side
    3,930.33x = 14,840,060.99
  5. Step 5: Solve for x
    x = 14,840,060.99/3,930.33
  6. Step 6: Final answer
    x = 3,775.78

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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.