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Finding the Fourth Proportional to 4,408.75, 6,613.13 and 1,330.75

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Solution

The fourth proportional to 4,408.75, 6,613.13 and 1,330.75 is: 1,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,408.75 : 6,613.13 = 1,330.75 : x
  2. Step 2: Convert to fraction form
    4,408.75/6,613.13 = 1,330.75/x
  3. Step 3: Cross multiply
    4,408.75x = 6,613.13 × 1,330.75
  4. Step 4: Simplify right side
    4,408.75x = 8,800,422.75
  5. Step 5: Solve for x
    x = 8,800,422.75/4,408.75
  6. Step 6: Final answer
    x = 1,996.13

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Similar ratio
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1.5x scale

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.