Home / 1,727.73-2,385.22-1,217.51

Finding the Fourth Proportional to 1,727.73, 2,385.22 and 1,217.51

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Solution

The fourth proportional to 1,727.73, 2,385.22 and 1,217.51 is: 1,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.73 : 2,385.22 = 1,217.51 : x
  2. Step 2: Convert to fraction form
    1,727.73/2,385.22 = 1,217.51/x
  3. Step 3: Cross multiply
    1,727.73x = 2,385.22 × 1,217.51
  4. Step 4: Simplify right side
    1,727.73x = 2,904,022.18
  5. Step 5: Solve for x
    x = 2,904,022.18/1,727.73
  6. Step 6: Final answer
    x = 1,680.83

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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.