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Finding the Fourth Proportional to 2,759.97, 3,808.76 and 1,517.97

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Solution

The fourth proportional to 2,759.97, 3,808.76 and 1,517.97 is: 2,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.97 : 3,808.76 = 1,517.97 : x
  2. Step 2: Convert to fraction form
    2,759.97/3,808.76 = 1,517.97/x
  3. Step 3: Cross multiply
    2,759.97x = 3,808.76 × 1,517.97
  4. Step 4: Simplify right side
    2,759.97x = 5,781,583.42
  5. Step 5: Solve for x
    x = 5,781,583.42/2,759.97
  6. Step 6: Final answer
    x = 2,094.80

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1.5x scale

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.