Home / 7,474.34-11,212.74-2,279

Finding the Fourth Proportional to 7,474.34, 11,212.74 and 2,279

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Solution

The fourth proportional to 7,474.34, 11,212.74 and 2,279 is: 3,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.34 : 11,212.74 = 2,279 : x
  2. Step 2: Convert to fraction form
    7,474.34/11,212.74 = 2,279/x
  3. Step 3: Cross multiply
    7,474.34x = 11,212.74 × 2,279
  4. Step 4: Simplify right side
    7,474.34x = 25,553,834.46
  5. Step 5: Solve for x
    x = 25,553,834.46/7,474.34
  6. Step 6: Final answer
    x = 3,418.88

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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.