Home / 2,757.80-4,137.38-1,371.79

Finding the Fourth Proportional to 2,757.80, 4,137.38 and 1,371.79

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Solution

The fourth proportional to 2,757.80, 4,137.38 and 1,371.79 is: 2,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.80 : 4,137.38 = 1,371.79 : x
  2. Step 2: Convert to fraction form
    2,757.80/4,137.38 = 1,371.79/x
  3. Step 3: Cross multiply
    2,757.80x = 4,137.38 × 1,371.79
  4. Step 4: Simplify right side
    2,757.80x = 5,675,609.65
  5. Step 5: Solve for x
    x = 5,675,609.65/2,757.80
  6. Step 6: Final answer
    x = 2,058.02

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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.