Home / 2,721.68-3,761.28-2,058.28

Finding the Fourth Proportional to 2,721.68, 3,761.28 and 2,058.28

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Solution

The fourth proportional to 2,721.68, 3,761.28 and 2,058.28 is: 2,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.68 : 3,761.28 = 2,058.28 : x
  2. Step 2: Convert to fraction form
    2,721.68/3,761.28 = 2,058.28/x
  3. Step 3: Cross multiply
    2,721.68x = 3,761.28 × 2,058.28
  4. Step 4: Simplify right side
    2,721.68x = 7,741,767.40
  5. Step 5: Solve for x
    x = 7,741,767.40/2,721.68
  6. Step 6: Final answer
    x = 2,844.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.