Home / 4,408.82-6,613.17-1,121.90

Finding the Fourth Proportional to 4,408.82, 6,613.17 and 1,121.90

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Solution

The fourth proportional to 4,408.82, 6,613.17 and 1,121.90 is: 1,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,408.82 : 6,613.17 = 1,121.90 : x
  2. Step 2: Convert to fraction form
    4,408.82/6,613.17 = 1,121.90/x
  3. Step 3: Cross multiply
    4,408.82x = 6,613.17 × 1,121.90
  4. Step 4: Simplify right side
    4,408.82x = 7,419,318.50
  5. Step 5: Solve for x
    x = 7,419,318.50/4,408.82
  6. Step 6: Final answer
    x = 1,682.84

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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.