Home / 3,872,743.20-5,344,454.28-2,153,864.46

Finding the Fourth Proportional to 3,872,743.20, 5,344,454.28 and 2,153,864.46

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Solution

The fourth proportional to 3,872,743.20, 5,344,454.28 and 2,153,864.46 is: 2,972,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872,743.20 : 5,344,454.28 = 2,153,864.46 : x
  2. Step 2: Convert to fraction form
    3,872,743.20/5,344,454.28 = 2,153,864.46/x
  3. Step 3: Cross multiply
    3,872,743.20x = 5,344,454.28 × 2,153,864.46
  4. Step 4: Simplify right side
    3,872,743.20x = 11,511,230,131,786.89
  5. Step 5: Solve for x
    x = 11,511,230,131,786.89/3,872,743.20
  6. Step 6: Final answer
    x = 2,972,371.14

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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.