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Finding the Fourth Proportional to 1,781.75, 2,458.83 and 995.96

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Solution

The fourth proportional to 1,781.75, 2,458.83 and 995.96 is: 1,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.75 : 2,458.83 = 995.96 : x
  2. Step 2: Convert to fraction form
    1,781.75/2,458.83 = 995.96/x
  3. Step 3: Cross multiply
    1,781.75x = 2,458.83 × 995.96
  4. Step 4: Simplify right side
    1,781.75x = 2,448,896.33
  5. Step 5: Solve for x
    x = 2,448,896.33/1,781.75
  6. Step 6: Final answer
    x = 1,374.43

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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.