Home / 3,981.79-5,969.49-2,006.34

Finding the Fourth Proportional to 3,981.79, 5,969.49 and 2,006.34

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Solution

The fourth proportional to 3,981.79, 5,969.49 and 2,006.34 is: 3,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.79 : 5,969.49 = 2,006.34 : x
  2. Step 2: Convert to fraction form
    3,981.79/5,969.49 = 2,006.34/x
  3. Step 3: Cross multiply
    3,981.79x = 5,969.49 × 2,006.34
  4. Step 4: Simplify right side
    3,981.79x = 11,976,826.57
  5. Step 5: Solve for x
    x = 11,976,826.57/3,981.79
  6. Step 6: Final answer
    x = 3,007.90

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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.