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Finding the Fourth Proportional to 2,754.56, 4,131.75 and 674.57

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Solution

The fourth proportional to 2,754.56, 4,131.75 and 674.57 is: 1,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.56 : 4,131.75 = 674.57 : x
  2. Step 2: Convert to fraction form
    2,754.56/4,131.75 = 674.57/x
  3. Step 3: Cross multiply
    2,754.56x = 4,131.75 × 674.57
  4. Step 4: Simplify right side
    2,754.56x = 2,787,133.94
  5. Step 5: Solve for x
    x = 2,787,133.94/2,754.56
  6. Step 6: Final answer
    x = 1,011.83

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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.