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Finding the Fourth Proportional to 7,879.75, 11,819.75 and 2,333.66

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Solution

The fourth proportional to 7,879.75, 11,819.75 and 2,333.66 is: 3,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.75 : 11,819.75 = 2,333.66 : x
  2. Step 2: Convert to fraction form
    7,879.75/11,819.75 = 2,333.66/x
  3. Step 3: Cross multiply
    7,879.75x = 11,819.75 × 2,333.66
  4. Step 4: Simplify right side
    7,879.75x = 27,583,277.79
  5. Step 5: Solve for x
    x = 27,583,277.79/7,879.75
  6. Step 6: Final answer
    x = 3,500.53

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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.