Home / 5,819.92-8,729.88-4,789.76

Finding the Fourth Proportional to 5,819.92, 8,729.88 and 4,789.76

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Solution

The fourth proportional to 5,819.92, 8,729.88 and 4,789.76 is: 7,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.92 : 8,729.88 = 4,789.76 : x
  2. Step 2: Convert to fraction form
    5,819.92/8,729.88 = 4,789.76/x
  3. Step 3: Cross multiply
    5,819.92x = 8,729.88 × 4,789.76
  4. Step 4: Simplify right side
    5,819.92x = 41,813,968.42
  5. Step 5: Solve for x
    x = 41,813,968.42/5,819.92
  6. Step 6: Final answer
    x = 7,184.63

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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.