Home / 2,717.28-4,079.36-1,747.68

Finding the Fourth Proportional to 2,717.28, 4,079.36 and 1,747.68

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Solution

The fourth proportional to 2,717.28, 4,079.36 and 1,747.68 is: 2,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.28 : 4,079.36 = 1,747.68 : x
  2. Step 2: Convert to fraction form
    2,717.28/4,079.36 = 1,747.68/x
  3. Step 3: Cross multiply
    2,717.28x = 4,079.36 × 1,747.68
  4. Step 4: Simplify right side
    2,717.28x = 7,129,415.88
  5. Step 5: Solve for x
    x = 7,129,415.88/2,717.28
  6. Step 6: Final answer
    x = 2,623.73

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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.