Home / 3,747.38-5,621.33-1,438.88

Finding the Fourth Proportional to 3,747.38, 5,621.33 and 1,438.88

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Solution

The fourth proportional to 3,747.38, 5,621.33 and 1,438.88 is: 2,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.38 : 5,621.33 = 1,438.88 : x
  2. Step 2: Convert to fraction form
    3,747.38/5,621.33 = 1,438.88/x
  3. Step 3: Cross multiply
    3,747.38x = 5,621.33 × 1,438.88
  4. Step 4: Simplify right side
    3,747.38x = 8,088,394.80
  5. Step 5: Solve for x
    x = 8,088,394.80/3,747.38
  6. Step 6: Final answer
    x = 2,158.42

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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.