Home / 2,287.97-3,157.56-1,279.76

Finding the Fourth Proportional to 2,287.97, 3,157.56 and 1,279.76

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Solution

The fourth proportional to 2,287.97, 3,157.56 and 1,279.76 is: 1,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.97 : 3,157.56 = 1,279.76 : x
  2. Step 2: Convert to fraction form
    2,287.97/3,157.56 = 1,279.76/x
  3. Step 3: Cross multiply
    2,287.97x = 3,157.56 × 1,279.76
  4. Step 4: Simplify right side
    2,287.97x = 4,040,903.20
  5. Step 5: Solve for x
    x = 4,040,903.20/2,287.97
  6. Step 6: Final answer
    x = 1,766.16

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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.