Home / 3,915.38-5,872.52-2,163.62

Finding the Fourth Proportional to 3,915.38, 5,872.52 and 2,163.62

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Solution

The fourth proportional to 3,915.38, 5,872.52 and 2,163.62 is: 3,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.38 : 5,872.52 = 2,163.62 : x
  2. Step 2: Convert to fraction form
    3,915.38/5,872.52 = 2,163.62/x
  3. Step 3: Cross multiply
    3,915.38x = 5,872.52 × 2,163.62
  4. Step 4: Simplify right side
    3,915.38x = 12,705,901.72
  5. Step 5: Solve for x
    x = 12,705,901.72/3,915.38
  6. Step 6: Final answer
    x = 3,245.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.