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Finding the Fourth Proportional to 2,198.46, 3,294.38 and 880.90

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Solution

The fourth proportional to 2,198.46, 3,294.38 and 880.90 is: 1,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.46 : 3,294.38 = 880.90 : x
  2. Step 2: Convert to fraction form
    2,198.46/3,294.38 = 880.90/x
  3. Step 3: Cross multiply
    2,198.46x = 3,294.38 × 880.90
  4. Step 4: Simplify right side
    2,198.46x = 2,902,017.14
  5. Step 5: Solve for x
    x = 2,902,017.14/2,198.46
  6. Step 6: Final answer
    x = 1,320.03

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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.