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Finding the Fourth Proportional to 7,879.19, 11,803.01 and 4,749.73

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Solution

The fourth proportional to 7,879.19, 11,803.01 and 4,749.73 is: 7,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.19 : 11,803.01 = 4,749.73 : x
  2. Step 2: Convert to fraction form
    7,879.19/11,803.01 = 4,749.73/x
  3. Step 3: Cross multiply
    7,879.19x = 11,803.01 × 4,749.73
  4. Step 4: Simplify right side
    7,879.19x = 56,061,057.43
  5. Step 5: Solve for x
    x = 56,061,057.43/7,879.19
  6. Step 6: Final answer
    x = 7,115.08

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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.