Home / 2,721.80-4,081.66-1,160.82

Finding the Fourth Proportional to 2,721.80, 4,081.66 and 1,160.82

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Solution

The fourth proportional to 2,721.80, 4,081.66 and 1,160.82 is: 1,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.80 : 4,081.66 = 1,160.82 : x
  2. Step 2: Convert to fraction form
    2,721.80/4,081.66 = 1,160.82/x
  3. Step 3: Cross multiply
    2,721.80x = 4,081.66 × 1,160.82
  4. Step 4: Simplify right side
    2,721.80x = 4,738,072.56
  5. Step 5: Solve for x
    x = 4,738,072.56/2,721.80
  6. Step 6: Final answer
    x = 1,740.79

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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.