Home / 2,447.16-3,377.64-1,399.80

Finding the Fourth Proportional to 2,447.16, 3,377.64 and 1,399.80

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Solution

The fourth proportional to 2,447.16, 3,377.64 and 1,399.80 is: 1,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.16 : 3,377.64 = 1,399.80 : x
  2. Step 2: Convert to fraction form
    2,447.16/3,377.64 = 1,399.80/x
  3. Step 3: Cross multiply
    2,447.16x = 3,377.64 × 1,399.80
  4. Step 4: Simplify right side
    2,447.16x = 4,728,020.47
  5. Step 5: Solve for x
    x = 4,728,020.47/2,447.16
  6. Step 6: Final answer
    x = 1,932.04

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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.