Home / 3,858,458.28-5,324,945.22-2,139,743.40

Finding the Fourth Proportional to 3,858,458.28, 5,324,945.22 and 2,139,743.40

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Solution

The fourth proportional to 3,858,458.28, 5,324,945.22 and 2,139,743.40 is: 2,952,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,458.28 : 5,324,945.22 = 2,139,743.40 : x
  2. Step 2: Convert to fraction form
    3,858,458.28/5,324,945.22 = 2,139,743.40/x
  3. Step 3: Cross multiply
    3,858,458.28x = 5,324,945.22 × 2,139,743.40
  4. Step 4: Simplify right side
    3,858,458.28x = 11,394,016,389,856.55
  5. Step 5: Solve for x
    x = 11,394,016,389,856.55/3,858,458.28
  6. Step 6: Final answer
    x = 2,952,997.17

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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.