Home / 3,940,793.62-5,438,293.76-2,129,957.62

Finding the Fourth Proportional to 3,940,793.62, 5,438,293.76 and 2,129,957.62

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Solution

The fourth proportional to 3,940,793.62, 5,438,293.76 and 2,129,957.62 is: 2,939,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,793.62 : 5,438,293.76 = 2,129,957.62 : x
  2. Step 2: Convert to fraction form
    3,940,793.62/5,438,293.76 = 2,129,957.62/x
  3. Step 3: Cross multiply
    3,940,793.62x = 5,438,293.76 × 2,129,957.62
  4. Step 4: Simplify right side
    3,940,793.62x = 11,583,335,233,910.45
  5. Step 5: Solve for x
    x = 11,583,335,233,910.45/3,940,793.62
  6. Step 6: Final answer
    x = 2,939,340.74

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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.