Home / 7,213.95-10,819.29-3,314.61

Finding the Fourth Proportional to 7,213.95, 10,819.29 and 3,314.61

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Solution

The fourth proportional to 7,213.95, 10,819.29 and 3,314.61 is: 4,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.95 : 10,819.29 = 3,314.61 : x
  2. Step 2: Convert to fraction form
    7,213.95/10,819.29 = 3,314.61/x
  3. Step 3: Cross multiply
    7,213.95x = 10,819.29 × 3,314.61
  4. Step 4: Simplify right side
    7,213.95x = 35,861,726.83
  5. Step 5: Solve for x
    x = 35,861,726.83/7,213.95
  6. Step 6: Final answer
    x = 4,971.16

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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.