Home / 7,262.12-10,891.80-2,819.79

Finding the Fourth Proportional to 7,262.12, 10,891.80 and 2,819.79

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Solution

The fourth proportional to 7,262.12, 10,891.80 and 2,819.79 is: 4,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262.12 : 10,891.80 = 2,819.79 : x
  2. Step 2: Convert to fraction form
    7,262.12/10,891.80 = 2,819.79/x
  3. Step 3: Cross multiply
    7,262.12x = 10,891.80 × 2,819.79
  4. Step 4: Simplify right side
    7,262.12x = 30,712,588.72
  5. Step 5: Solve for x
    x = 30,712,588.72/7,262.12
  6. Step 6: Final answer
    x = 4,229.15

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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.