Home / 2,761.98-4,143.28-1,375.66

Finding the Fourth Proportional to 2,761.98, 4,143.28 and 1,375.66

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Solution

The fourth proportional to 2,761.98, 4,143.28 and 1,375.66 is: 2,063.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.98 : 4,143.28 = 1,375.66 : x
  2. Step 2: Convert to fraction form
    2,761.98/4,143.28 = 1,375.66/x
  3. Step 3: Cross multiply
    2,761.98x = 4,143.28 × 1,375.66
  4. Step 4: Simplify right side
    2,761.98x = 5,699,744.56
  5. Step 5: Solve for x
    x = 5,699,744.56/2,761.98
  6. Step 6: Final answer
    x = 2,063.64

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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.