Home / 3,929,600.79-5,887,388.81-2,131,337.21

Finding the Fourth Proportional to 3,929,600.79, 5,887,388.81 and 2,131,337.21

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Solution

The fourth proportional to 3,929,600.79, 5,887,388.81 and 2,131,337.21 is: 3,193,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,600.79 : 5,887,388.81 = 2,131,337.21 : x
  2. Step 2: Convert to fraction form
    3,929,600.79/5,887,388.81 = 2,131,337.21/x
  3. Step 3: Cross multiply
    3,929,600.79x = 5,887,388.81 × 2,131,337.21
  4. Step 4: Simplify right side
    3,929,600.79x = 12,548,010,816,382.02
  5. Step 5: Solve for x
    x = 12,548,010,816,382.02/3,929,600.79
  6. Step 6: Final answer
    x = 3,193,202.44

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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.