Home / 1,727.20-2,383.73-1,028.57

Finding the Fourth Proportional to 1,727.20, 2,383.73 and 1,028.57

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Solution

The fourth proportional to 1,727.20, 2,383.73 and 1,028.57 is: 1,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.20 : 2,383.73 = 1,028.57 : x
  2. Step 2: Convert to fraction form
    1,727.20/2,383.73 = 1,028.57/x
  3. Step 3: Cross multiply
    1,727.20x = 2,383.73 × 1,028.57
  4. Step 4: Simplify right side
    1,727.20x = 2,451,833.17
  5. Step 5: Solve for x
    x = 2,451,833.17/1,727.20
  6. Step 6: Final answer
    x = 1,419.54

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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.