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Finding the Fourth Proportional to 6,219, 9,331.74 and 2,755.44

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Solution

The fourth proportional to 6,219, 9,331.74 and 2,755.44 is: 4,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219 : 9,331.74 = 2,755.44 : x
  2. Step 2: Convert to fraction form
    6,219/9,331.74 = 2,755.44/x
  3. Step 3: Cross multiply
    6,219x = 9,331.74 × 2,755.44
  4. Step 4: Simplify right side
    6,219x = 25,713,049.67
  5. Step 5: Solve for x
    x = 25,713,049.67/6,219
  6. Step 6: Final answer
    x = 4,134.60

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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.