Home / 3,979,821.66-5,492,172.42-2,261,036.49

Finding the Fourth Proportional to 3,979,821.66, 5,492,172.42 and 2,261,036.49

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Solution

The fourth proportional to 3,979,821.66, 5,492,172.42 and 2,261,036.49 is: 3,120,240.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,821.66 : 5,492,172.42 = 2,261,036.49 : x
  2. Step 2: Convert to fraction form
    3,979,821.66/5,492,172.42 = 2,261,036.49/x
  3. Step 3: Cross multiply
    3,979,821.66x = 5,492,172.42 × 2,261,036.49
  4. Step 4: Simplify right side
    3,979,821.66x = 12,418,002,250,991.61
  5. Step 5: Solve for x
    x = 12,418,002,250,991.61/3,979,821.66
  6. Step 6: Final answer
    x = 3,120,240.88

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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.