Home / 3,891,687.62-5,370,539.33-2,172,869.64

Finding the Fourth Proportional to 3,891,687.62, 5,370,539.33 and 2,172,869.64

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Solution

The fourth proportional to 3,891,687.62, 5,370,539.33 and 2,172,869.64 is: 2,998,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,687.62 : 5,370,539.33 = 2,172,869.64 : x
  2. Step 2: Convert to fraction form
    3,891,687.62/5,370,539.33 = 2,172,869.64/x
  3. Step 3: Cross multiply
    3,891,687.62x = 5,370,539.33 × 2,172,869.64
  4. Step 4: Simplify right side
    3,891,687.62x = 11,669,481,860,582.94
  5. Step 5: Solve for x
    x = 11,669,481,860,582.94/3,891,687.62
  6. Step 6: Final answer
    x = 2,998,565.92

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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.