Home / 2,727.12-3,763.92-1,679.28

Finding the Fourth Proportional to 2,727.12, 3,763.92 and 1,679.28

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Solution

The fourth proportional to 2,727.12, 3,763.92 and 1,679.28 is: 2,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.12 : 3,763.92 = 1,679.28 : x
  2. Step 2: Convert to fraction form
    2,727.12/3,763.92 = 1,679.28/x
  3. Step 3: Cross multiply
    2,727.12x = 3,763.92 × 1,679.28
  4. Step 4: Simplify right side
    2,727.12x = 6,320,675.58
  5. Step 5: Solve for x
    x = 6,320,675.58/2,727.12
  6. Step 6: Final answer
    x = 2,317.71

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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.