Home / 1,788.27-2,682.94-1,205.61

Finding the Fourth Proportional to 1,788.27, 2,682.94 and 1,205.61

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Solution

The fourth proportional to 1,788.27, 2,682.94 and 1,205.61 is: 1,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.27 : 2,682.94 = 1,205.61 : x
  2. Step 2: Convert to fraction form
    1,788.27/2,682.94 = 1,205.61/x
  3. Step 3: Cross multiply
    1,788.27x = 2,682.94 × 1,205.61
  4. Step 4: Simplify right side
    1,788.27x = 3,234,579.29
  5. Step 5: Solve for x
    x = 3,234,579.29/1,788.27
  6. Step 6: Final answer
    x = 1,808.78

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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.