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Finding the Fourth Proportional to 2,747.54, 4,121.44 and 898.76

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Solution

The fourth proportional to 2,747.54, 4,121.44 and 898.76 is: 1,348.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.54 : 4,121.44 = 898.76 : x
  2. Step 2: Convert to fraction form
    2,747.54/4,121.44 = 898.76/x
  3. Step 3: Cross multiply
    2,747.54x = 4,121.44 × 898.76
  4. Step 4: Simplify right side
    2,747.54x = 3,704,193.47
  5. Step 5: Solve for x
    x = 3,704,193.47/2,747.54
  6. Step 6: Final answer
    x = 1,348.18

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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.