Home / 3,941,983-5,439,943.92-2,131,147

Finding the Fourth Proportional to 3,941,983, 5,439,943.92 and 2,131,147

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Solution

The fourth proportional to 3,941,983, 5,439,943.92 and 2,131,147 is: 2,940,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941,983 : 5,439,943.92 = 2,131,147 : x
  2. Step 2: Convert to fraction form
    3,941,983/5,439,943.92 = 2,131,147/x
  3. Step 3: Cross multiply
    3,941,983x = 5,439,943.92 × 2,131,147
  4. Step 4: Simplify right side
    3,941,983x = 11,593,320,165,276.24
  5. Step 5: Solve for x
    x = 11,593,320,165,276.24/3,941,983
  6. Step 6: Final answer
    x = 2,940,986.85

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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.