Home / 3,981.45-5,959.88-2,127.97

Finding the Fourth Proportional to 3,981.45, 5,959.88 and 2,127.97

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Solution

The fourth proportional to 3,981.45, 5,959.88 and 2,127.97 is: 3,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.45 : 5,959.88 = 2,127.97 : x
  2. Step 2: Convert to fraction form
    3,981.45/5,959.88 = 2,127.97/x
  3. Step 3: Cross multiply
    3,981.45x = 5,959.88 × 2,127.97
  4. Step 4: Simplify right side
    3,981.45x = 12,682,450.63
  5. Step 5: Solve for x
    x = 12,682,450.63/3,981.45
  6. Step 6: Final answer
    x = 3,185.38

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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.