Home / 3,940,793.64-5,438,293.76-2,129,957.64

Finding the Fourth Proportional to 3,940,793.64, 5,438,293.76 and 2,129,957.64

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Solution

The fourth proportional to 3,940,793.64, 5,438,293.76 and 2,129,957.64 is: 2,939,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,793.64 : 5,438,293.76 = 2,129,957.64 : x
  2. Step 2: Convert to fraction form
    3,940,793.64/5,438,293.76 = 2,129,957.64/x
  3. Step 3: Cross multiply
    3,940,793.64x = 5,438,293.76 × 2,129,957.64
  4. Step 4: Simplify right side
    3,940,793.64x = 11,583,335,342,676.33
  5. Step 5: Solve for x
    x = 11,583,335,342,676.33/3,940,793.64
  6. Step 6: Final answer
    x = 2,939,340.75

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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.