Home / 5,819.62-8,729.44-2,121.84

Finding the Fourth Proportional to 5,819.62, 8,729.44 and 2,121.84

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Solution

The fourth proportional to 5,819.62, 8,729.44 and 2,121.84 is: 3,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.62 : 8,729.44 = 2,121.84 : x
  2. Step 2: Convert to fraction form
    5,819.62/8,729.44 = 2,121.84/x
  3. Step 3: Cross multiply
    5,819.62x = 8,729.44 × 2,121.84
  4. Step 4: Simplify right side
    5,819.62x = 18,522,474.97
  5. Step 5: Solve for x
    x = 18,522,474.97/5,819.62
  6. Step 6: Final answer
    x = 3,182.77

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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.