Home / 3,878.38-5,817.30-2,229.76

Finding the Fourth Proportional to 3,878.38, 5,817.30 and 2,229.76

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Solution

The fourth proportional to 3,878.38, 5,817.30 and 2,229.76 is: 3,344.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.38 : 5,817.30 = 2,229.76 : x
  2. Step 2: Convert to fraction form
    3,878.38/5,817.30 = 2,229.76/x
  3. Step 3: Cross multiply
    3,878.38x = 5,817.30 × 2,229.76
  4. Step 4: Simplify right side
    3,878.38x = 12,971,182.85
  5. Step 5: Solve for x
    x = 12,971,182.85/3,878.38
  6. Step 6: Final answer
    x = 3,344.48

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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.