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Finding the Fourth Proportional to 7,981.97, 11,980.96 and 3,304.73

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Solution

The fourth proportional to 7,981.97, 11,980.96 and 3,304.73 is: 4,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.97 : 11,980.96 = 3,304.73 : x
  2. Step 2: Convert to fraction form
    7,981.97/11,980.96 = 3,304.73/x
  3. Step 3: Cross multiply
    7,981.97x = 11,980.96 × 3,304.73
  4. Step 4: Simplify right side
    7,981.97x = 39,593,859.63
  5. Step 5: Solve for x
    x = 39,593,859.63/7,981.97
  6. Step 6: Final answer
    x = 4,960.42

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1.5x scale

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.