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Finding the Fourth Proportional to 7,879.56, 11,823.94 and 2,952.66

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Solution

The fourth proportional to 7,879.56, 11,823.94 and 2,952.66 is: 4,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.56 : 11,823.94 = 2,952.66 : x
  2. Step 2: Convert to fraction form
    7,879.56/11,823.94 = 2,952.66/x
  3. Step 3: Cross multiply
    7,879.56x = 11,823.94 × 2,952.66
  4. Step 4: Simplify right side
    7,879.56x = 34,912,074.68
  5. Step 5: Solve for x
    x = 34,912,074.68/7,879.56
  6. Step 6: Final answer
    x = 4,430.71

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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.