Home / 2,447.76-3,377.90-1,399.88

Finding the Fourth Proportional to 2,447.76, 3,377.90 and 1,399.88

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Solution

The fourth proportional to 2,447.76, 3,377.90 and 1,399.88 is: 1,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.76 : 3,377.90 = 1,399.88 : x
  2. Step 2: Convert to fraction form
    2,447.76/3,377.90 = 1,399.88/x
  3. Step 3: Cross multiply
    2,447.76x = 3,377.90 × 1,399.88
  4. Step 4: Simplify right side
    2,447.76x = 4,728,654.65
  5. Step 5: Solve for x
    x = 4,728,654.65/2,447.76
  6. Step 6: Final answer
    x = 1,931.83

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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.