Home / 7,979.82-11,964.59-3,819.73

Finding the Fourth Proportional to 7,979.82, 11,964.59 and 3,819.73

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Solution

The fourth proportional to 7,979.82, 11,964.59 and 3,819.73 is: 5,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.82 : 11,964.59 = 3,819.73 : x
  2. Step 2: Convert to fraction form
    7,979.82/11,964.59 = 3,819.73/x
  3. Step 3: Cross multiply
    7,979.82x = 11,964.59 × 3,819.73
  4. Step 4: Simplify right side
    7,979.82x = 45,701,512.59
  5. Step 5: Solve for x
    x = 45,701,512.59/7,979.82
  6. Step 6: Final answer
    x = 5,727.13

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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.