Home / 7,631.82-11,446.01-3,879.80

Finding the Fourth Proportional to 7,631.82, 11,446.01 and 3,879.80

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Solution

The fourth proportional to 7,631.82, 11,446.01 and 3,879.80 is: 5,818.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.82 : 11,446.01 = 3,879.80 : x
  2. Step 2: Convert to fraction form
    7,631.82/11,446.01 = 3,879.80/x
  3. Step 3: Cross multiply
    7,631.82x = 11,446.01 × 3,879.80
  4. Step 4: Simplify right side
    7,631.82x = 44,408,210.44
  5. Step 5: Solve for x
    x = 44,408,210.44/7,631.82
  6. Step 6: Final answer
    x = 5,818.82

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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.