Home / 3,872.27-5,344.58-2,381.47

Finding the Fourth Proportional to 3,872.27, 5,344.58 and 2,381.47

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Solution

The fourth proportional to 3,872.27, 5,344.58 and 2,381.47 is: 3,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.27 : 5,344.58 = 2,381.47 : x
  2. Step 2: Convert to fraction form
    3,872.27/5,344.58 = 2,381.47/x
  3. Step 3: Cross multiply
    3,872.27x = 5,344.58 × 2,381.47
  4. Step 4: Simplify right side
    3,872.27x = 12,727,956.93
  5. Step 5: Solve for x
    x = 12,727,956.93/3,872.27
  6. Step 6: Final answer
    x = 3,286.95

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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.