Home / 7,981.34-11,976.05-3,304.80

Finding the Fourth Proportional to 7,981.34, 11,976.05 and 3,304.80

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Solution

The fourth proportional to 7,981.34, 11,976.05 and 3,304.80 is: 4,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.34 : 11,976.05 = 3,304.80 : x
  2. Step 2: Convert to fraction form
    7,981.34/11,976.05 = 3,304.80/x
  3. Step 3: Cross multiply
    7,981.34x = 11,976.05 × 3,304.80
  4. Step 4: Simplify right side
    7,981.34x = 39,578,458.30
  5. Step 5: Solve for x
    x = 39,578,458.30/7,981.34
  6. Step 6: Final answer
    x = 4,958.88

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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.