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Finding the Fourth Proportional to 2,734.97, 4,101.44 and 979.49

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Solution

The fourth proportional to 2,734.97, 4,101.44 and 979.49 is: 1,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.97 : 4,101.44 = 979.49 : x
  2. Step 2: Convert to fraction form
    2,734.97/4,101.44 = 979.49/x
  3. Step 3: Cross multiply
    2,734.97x = 4,101.44 × 979.49
  4. Step 4: Simplify right side
    2,734.97x = 4,017,294.06
  5. Step 5: Solve for x
    x = 4,017,294.06/2,734.97
  6. Step 6: Final answer
    x = 1,468.86

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1.5x scale

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.