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Finding the Fourth Proportional to 6,122.72, 8,449.38 and 3,328.22

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Solution

The fourth proportional to 6,122.72, 8,449.38 and 3,328.22 is: 4,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.72 : 8,449.38 = 3,328.22 : x
  2. Step 2: Convert to fraction form
    6,122.72/8,449.38 = 3,328.22/x
  3. Step 3: Cross multiply
    6,122.72x = 8,449.38 × 3,328.22
  4. Step 4: Simplify right side
    6,122.72x = 28,121,395.50
  5. Step 5: Solve for x
    x = 28,121,395.50/6,122.72
  6. Step 6: Final answer
    x = 4,592.96

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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.