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Finding the Fourth Proportional to 2,747.92, 4,122.40 and 898.88

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Solution

The fourth proportional to 2,747.92, 4,122.40 and 898.88 is: 1,348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.92 : 4,122.40 = 898.88 : x
  2. Step 2: Convert to fraction form
    2,747.92/4,122.40 = 898.88/x
  3. Step 3: Cross multiply
    2,747.92x = 4,122.40 × 898.88
  4. Step 4: Simplify right side
    2,747.92x = 3,705,542.91
  5. Step 5: Solve for x
    x = 3,705,542.91/2,747.92
  6. Step 6: Final answer
    x = 1,348.49

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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.