Home / 3,981.66-5,972.44-2,422.09

Finding the Fourth Proportional to 3,981.66, 5,972.44 and 2,422.09

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Solution

The fourth proportional to 3,981.66, 5,972.44 and 2,422.09 is: 3,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.66 : 5,972.44 = 2,422.09 : x
  2. Step 2: Convert to fraction form
    3,981.66/5,972.44 = 2,422.09/x
  3. Step 3: Cross multiply
    3,981.66x = 5,972.44 × 2,422.09
  4. Step 4: Simplify right side
    3,981.66x = 14,465,787.20
  5. Step 5: Solve for x
    x = 14,465,787.20/3,981.66
  6. Step 6: Final answer
    x = 3,633.10

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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.