Home / 3,706.20-5,115.24-2,381.56

Finding the Fourth Proportional to 3,706.20, 5,115.24 and 2,381.56

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Solution

The fourth proportional to 3,706.20, 5,115.24 and 2,381.56 is: 3,286.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.20 : 5,115.24 = 2,381.56 : x
  2. Step 2: Convert to fraction form
    3,706.20/5,115.24 = 2,381.56/x
  3. Step 3: Cross multiply
    3,706.20x = 5,115.24 × 2,381.56
  4. Step 4: Simplify right side
    3,706.20x = 12,182,250.97
  5. Step 5: Solve for x
    x = 12,182,250.97/3,706.20
  6. Step 6: Final answer
    x = 3,286.99

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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.