Home / 3,949,672.86-5,450,517-2,138,836.86

Finding the Fourth Proportional to 3,949,672.86, 5,450,517 and 2,138,836.86

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Solution

The fourth proportional to 3,949,672.86, 5,450,517 and 2,138,836.86 is: 2,951,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949,672.86 : 5,450,517 = 2,138,836.86 : x
  2. Step 2: Convert to fraction form
    3,949,672.86/5,450,517 = 2,138,836.86/x
  3. Step 3: Cross multiply
    3,949,672.86x = 5,450,517 × 2,138,836.86
  4. Step 4: Simplify right side
    3,949,672.86x = 11,657,766,665,656.62
  5. Step 5: Solve for x
    x = 11,657,766,665,656.62/3,949,672.86
  6. Step 6: Final answer
    x = 2,951,577.78

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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.