Home / 7,819.34-11,728.68-2,272.57

Finding the Fourth Proportional to 7,819.34, 11,728.68 and 2,272.57

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Solution

The fourth proportional to 7,819.34, 11,728.68 and 2,272.57 is: 3,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.34 : 11,728.68 = 2,272.57 : x
  2. Step 2: Convert to fraction form
    7,819.34/11,728.68 = 2,272.57/x
  3. Step 3: Cross multiply
    7,819.34x = 11,728.68 × 2,272.57
  4. Step 4: Simplify right side
    7,819.34x = 26,654,208.46
  5. Step 5: Solve for x
    x = 26,654,208.46/7,819.34
  6. Step 6: Final answer
    x = 3,408.76

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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.