Home / 3,981.33-5,972.03-1,382.45

Finding the Fourth Proportional to 3,981.33, 5,972.03 and 1,382.45

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Solution

The fourth proportional to 3,981.33, 5,972.03 and 1,382.45 is: 2,073.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.33 : 5,972.03 = 1,382.45 : x
  2. Step 2: Convert to fraction form
    3,981.33/5,972.03 = 1,382.45/x
  3. Step 3: Cross multiply
    3,981.33x = 5,972.03 × 1,382.45
  4. Step 4: Simplify right side
    3,981.33x = 8,255,996.10
  5. Step 5: Solve for x
    x = 8,255,996.10/3,981.33
  6. Step 6: Final answer
    x = 2,073.68

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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.