Home / 3,921,721.92-5,412,107.66-2,179,464.73

Finding the Fourth Proportional to 3,921,721.92, 5,412,107.66 and 2,179,464.73

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Solution

The fourth proportional to 3,921,721.92, 5,412,107.66 and 2,179,464.73 is: 3,007,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,721.92 : 5,412,107.66 = 2,179,464.73 : x
  2. Step 2: Convert to fraction form
    3,921,721.92/5,412,107.66 = 2,179,464.73/x
  3. Step 3: Cross multiply
    3,921,721.92x = 5,412,107.66 × 2,179,464.73
  4. Step 4: Simplify right side
    3,921,721.92x = 11,795,497,751,851.22
  5. Step 5: Solve for x
    x = 11,795,497,751,851.22/3,921,721.92
  6. Step 6: Final answer
    x = 3,007,734.36

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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.