Home / 3,915.38-5,871.20-2,272.43

Finding the Fourth Proportional to 3,915.38, 5,871.20 and 2,272.43

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Solution

The fourth proportional to 3,915.38, 5,871.20 and 2,272.43 is: 3,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.38 : 5,871.20 = 2,272.43 : x
  2. Step 2: Convert to fraction form
    3,915.38/5,871.20 = 2,272.43/x
  3. Step 3: Cross multiply
    3,915.38x = 5,871.20 × 2,272.43
  4. Step 4: Simplify right side
    3,915.38x = 13,341,850.30
  5. Step 5: Solve for x
    x = 13,341,850.30/3,915.38
  6. Step 6: Final answer
    x = 3,407.55

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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.