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Finding the Fourth Proportional to 2,198.30, 3,294.57 and 898.28

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Solution

The fourth proportional to 2,198.30, 3,294.57 and 898.28 is: 1,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.30 : 3,294.57 = 898.28 : x
  2. Step 2: Convert to fraction form
    2,198.30/3,294.57 = 898.28/x
  3. Step 3: Cross multiply
    2,198.30x = 3,294.57 × 898.28
  4. Step 4: Simplify right side
    2,198.30x = 2,959,446.34
  5. Step 5: Solve for x
    x = 2,959,446.34/2,198.30
  6. Step 6: Final answer
    x = 1,346.24

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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.