Home / 7,979.70-11,974.34-3,049.73

Finding the Fourth Proportional to 7,979.70, 11,974.34 and 3,049.73

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Solution

The fourth proportional to 7,979.70, 11,974.34 and 3,049.73 is: 4,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.70 : 11,974.34 = 3,049.73 : x
  2. Step 2: Convert to fraction form
    7,979.70/11,974.34 = 3,049.73/x
  3. Step 3: Cross multiply
    7,979.70x = 11,974.34 × 3,049.73
  4. Step 4: Simplify right side
    7,979.70x = 36,518,428.81
  5. Step 5: Solve for x
    x = 36,518,428.81/7,979.70
  6. Step 6: Final answer
    x = 4,576.42

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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.