Home / 1,748.38-2,616.28-1,285

Finding the Fourth Proportional to 1,748.38, 2,616.28 and 1,285

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Solution

The fourth proportional to 1,748.38, 2,616.28 and 1,285 is: 1,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.38 : 2,616.28 = 1,285 : x
  2. Step 2: Convert to fraction form
    1,748.38/2,616.28 = 1,285/x
  3. Step 3: Cross multiply
    1,748.38x = 2,616.28 × 1,285
  4. Step 4: Simplify right side
    1,748.38x = 3,361,919.80
  5. Step 5: Solve for x
    x = 3,361,919.80/1,748.38
  6. Step 6: Final answer
    x = 1,922.88

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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.