Home / 3,872,792.20-5,344,521.90-2,153,913.52

Finding the Fourth Proportional to 3,872,792.20, 5,344,521.90 and 2,153,913.52

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Solution

The fourth proportional to 3,872,792.20, 5,344,521.90 and 2,153,913.52 is: 2,972,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872,792.20 : 5,344,521.90 = 2,153,913.52 : x
  2. Step 2: Convert to fraction form
    3,872,792.20/5,344,521.90 = 2,153,913.52/x
  3. Step 3: Cross multiply
    3,872,792.20x = 5,344,521.90 × 2,153,913.52
  4. Step 4: Simplify right side
    3,872,792.20x = 11,511,637,978,346.09
  5. Step 5: Solve for x
    x = 11,511,637,978,346.09/3,872,792.20
  6. Step 6: Final answer
    x = 2,972,438.85

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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.