Home / 7,819.58-11,731.28-2,272.79

Finding the Fourth Proportional to 7,819.58, 11,731.28 and 2,272.79

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Solution

The fourth proportional to 7,819.58, 11,731.28 and 2,272.79 is: 3,409.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.58 : 11,731.28 = 2,272.79 : x
  2. Step 2: Convert to fraction form
    7,819.58/11,731.28 = 2,272.79/x
  3. Step 3: Cross multiply
    7,819.58x = 11,731.28 × 2,272.79
  4. Step 4: Simplify right side
    7,819.58x = 26,662,665.85
  5. Step 5: Solve for x
    x = 26,662,665.85/7,819.58
  6. Step 6: Final answer
    x = 3,409.73

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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.