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Finding the Fourth Proportional to 6,408.23, 8,841.84 and 3,890.27

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Solution

The fourth proportional to 6,408.23, 8,841.84 and 3,890.27 is: 5,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.23 : 8,841.84 = 3,890.27 : x
  2. Step 2: Convert to fraction form
    6,408.23/8,841.84 = 3,890.27/x
  3. Step 3: Cross multiply
    6,408.23x = 8,841.84 × 3,890.27
  4. Step 4: Simplify right side
    6,408.23x = 34,397,144.90
  5. Step 5: Solve for x
    x = 34,397,144.90/6,408.23
  6. Step 6: Final answer
    x = 5,367.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.