Home / 5,819.86-8,729.79-4,789.70

Finding the Fourth Proportional to 5,819.86, 8,729.79 and 4,789.70

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Solution

The fourth proportional to 5,819.86, 8,729.79 and 4,789.70 is: 7,184.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.86 : 8,729.79 = 4,789.70 : x
  2. Step 2: Convert to fraction form
    5,819.86/8,729.79 = 4,789.70/x
  3. Step 3: Cross multiply
    5,819.86x = 8,729.79 × 4,789.70
  4. Step 4: Simplify right side
    5,819.86x = 41,813,007.57
  5. Step 5: Solve for x
    x = 41,813,007.57/5,819.86
  6. Step 6: Final answer
    x = 7,184.54

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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.