Home / 7,213.28-10,819.11-2,019.56

Finding the Fourth Proportional to 7,213.28, 10,819.11 and 2,019.56

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Solution

The fourth proportional to 7,213.28, 10,819.11 and 2,019.56 is: 3,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.28 : 10,819.11 = 2,019.56 : x
  2. Step 2: Convert to fraction form
    7,213.28/10,819.11 = 2,019.56/x
  3. Step 3: Cross multiply
    7,213.28x = 10,819.11 × 2,019.56
  4. Step 4: Simplify right side
    7,213.28x = 21,849,841.79
  5. Step 5: Solve for x
    x = 21,849,841.79/7,213.28
  6. Step 6: Final answer
    x = 3,029.11

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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.