Home / 3,921,725.92-5,412,113.20-2,179,468.72

Finding the Fourth Proportional to 3,921,725.92, 5,412,113.20 and 2,179,468.72

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Solution

The fourth proportional to 3,921,725.92, 5,412,113.20 and 2,179,468.72 is: 3,007,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,725.92 : 5,412,113.20 = 2,179,468.72 : x
  2. Step 2: Convert to fraction form
    3,921,725.92/5,412,113.20 = 2,179,468.72/x
  3. Step 3: Cross multiply
    3,921,725.92x = 5,412,113.20 × 2,179,468.72
  4. Step 4: Simplify right side
    3,921,725.92x = 11,795,531,428,499.11
  5. Step 5: Solve for x
    x = 11,795,531,428,499.11/3,921,725.92
  6. Step 6: Final answer
    x = 3,007,739.88

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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.