Home / 1,945.25-2,684.49-1,198.94

Finding the Fourth Proportional to 1,945.25, 2,684.49 and 1,198.94

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Solution

The fourth proportional to 1,945.25, 2,684.49 and 1,198.94 is: 1,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.25 : 2,684.49 = 1,198.94 : x
  2. Step 2: Convert to fraction form
    1,945.25/2,684.49 = 1,198.94/x
  3. Step 3: Cross multiply
    1,945.25x = 2,684.49 × 1,198.94
  4. Step 4: Simplify right side
    1,945.25x = 3,218,531.27
  5. Step 5: Solve for x
    x = 3,218,531.27/1,945.25
  6. Step 6: Final answer
    x = 1,654.56

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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.