Home / 3,928,402.69-5,890,885.85-1,981,933.39

Finding the Fourth Proportional to 3,928,402.69, 5,890,885.85 and 1,981,933.39

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Solution

The fourth proportional to 3,928,402.69, 5,890,885.85 and 1,981,933.39 is: 2,972,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,402.69 : 5,890,885.85 = 1,981,933.39 : x
  2. Step 2: Convert to fraction form
    3,928,402.69/5,890,885.85 = 1,981,933.39/x
  3. Step 3: Cross multiply
    3,928,402.69x = 5,890,885.85 × 1,981,933.39
  4. Step 4: Simplify right side
    3,928,402.69x = 11,675,343,375,111.97
  5. Step 5: Solve for x
    x = 11,675,343,375,111.97/3,928,402.69
  6. Step 6: Final answer
    x = 2,972,033.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.