Home / 3,981.97-5,972.37-1,516.80

Finding the Fourth Proportional to 3,981.97, 5,972.37 and 1,516.80

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Solution

The fourth proportional to 3,981.97, 5,972.37 and 1,516.80 is: 2,274.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.97 : 5,972.37 = 1,516.80 : x
  2. Step 2: Convert to fraction form
    3,981.97/5,972.37 = 1,516.80/x
  3. Step 3: Cross multiply
    3,981.97x = 5,972.37 × 1,516.80
  4. Step 4: Simplify right side
    3,981.97x = 9,058,890.82
  5. Step 5: Solve for x
    x = 9,058,890.82/3,981.97
  6. Step 6: Final answer
    x = 2,274.98

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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.