Home / 1,906.20-2,862.96-1,691.64

Finding the Fourth Proportional to 1,906.20, 2,862.96 and 1,691.64

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Solution

The fourth proportional to 1,906.20, 2,862.96 and 1,691.64 is: 2,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.20 : 2,862.96 = 1,691.64 : x
  2. Step 2: Convert to fraction form
    1,906.20/2,862.96 = 1,691.64/x
  3. Step 3: Cross multiply
    1,906.20x = 2,862.96 × 1,691.64
  4. Step 4: Simplify right side
    1,906.20x = 4,843,097.65
  5. Step 5: Solve for x
    x = 4,843,097.65/1,906.20
  6. Step 6: Final answer
    x = 2,540.71

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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.