Home / 7,819.20-11,732.49-3,926.34

Finding the Fourth Proportional to 7,819.20, 11,732.49 and 3,926.34

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Solution

The fourth proportional to 7,819.20, 11,732.49 and 3,926.34 is: 5,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.20 : 11,732.49 = 3,926.34 : x
  2. Step 2: Convert to fraction form
    7,819.20/11,732.49 = 3,926.34/x
  3. Step 3: Cross multiply
    7,819.20x = 11,732.49 × 3,926.34
  4. Step 4: Simplify right side
    7,819.20x = 46,065,744.79
  5. Step 5: Solve for x
    x = 46,065,744.79/7,819.20
  6. Step 6: Final answer
    x = 5,891.36

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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.