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Finding the Fourth Proportional to 3,169.98, 4,755.24 and 1,089.43

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Solution

The fourth proportional to 3,169.98, 4,755.24 and 1,089.43 is: 1,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.98 : 4,755.24 = 1,089.43 : x
  2. Step 2: Convert to fraction form
    3,169.98/4,755.24 = 1,089.43/x
  3. Step 3: Cross multiply
    3,169.98x = 4,755.24 × 1,089.43
  4. Step 4: Simplify right side
    3,169.98x = 5,180,489.23
  5. Step 5: Solve for x
    x = 5,180,489.23/3,169.98
  6. Step 6: Final answer
    x = 1,634.23

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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.