Home / 2,714.28-4,071.76-1,327.66

Finding the Fourth Proportional to 2,714.28, 4,071.76 and 1,327.66

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Solution

The fourth proportional to 2,714.28, 4,071.76 and 1,327.66 is: 1,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.28 : 4,071.76 = 1,327.66 : x
  2. Step 2: Convert to fraction form
    2,714.28/4,071.76 = 1,327.66/x
  3. Step 3: Cross multiply
    2,714.28x = 4,071.76 × 1,327.66
  4. Step 4: Simplify right side
    2,714.28x = 5,405,912.88
  5. Step 5: Solve for x
    x = 5,405,912.88/2,714.28
  6. Step 6: Final answer
    x = 1,991.66

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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.