Home / 2,279.44-3,145.76-1,335.24

Finding the Fourth Proportional to 2,279.44, 3,145.76 and 1,335.24

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Solution

The fourth proportional to 2,279.44, 3,145.76 and 1,335.24 is: 1,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.44 : 3,145.76 = 1,335.24 : x
  2. Step 2: Convert to fraction form
    2,279.44/3,145.76 = 1,335.24/x
  3. Step 3: Cross multiply
    2,279.44x = 3,145.76 × 1,335.24
  4. Step 4: Simplify right side
    2,279.44x = 4,200,344.58
  5. Step 5: Solve for x
    x = 4,200,344.58/2,279.44
  6. Step 6: Final answer
    x = 1,842.71

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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.