Home / 2,721.35-4,083.56-1,161.18

Finding the Fourth Proportional to 2,721.35, 4,083.56 and 1,161.18

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Solution

The fourth proportional to 2,721.35, 4,083.56 and 1,161.18 is: 1,742.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.35 : 4,083.56 = 1,161.18 : x
  2. Step 2: Convert to fraction form
    2,721.35/4,083.56 = 1,161.18/x
  3. Step 3: Cross multiply
    2,721.35x = 4,083.56 × 1,161.18
  4. Step 4: Simplify right side
    2,721.35x = 4,741,742.39
  5. Step 5: Solve for x
    x = 4,741,742.39/2,721.35
  6. Step 6: Final answer
    x = 1,742.43

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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.