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Finding the Fourth Proportional to 3,228.97, 4,843.57 and 889.15

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Solution

The fourth proportional to 3,228.97, 4,843.57 and 889.15 is: 1,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.97 : 4,843.57 = 889.15 : x
  2. Step 2: Convert to fraction form
    3,228.97/4,843.57 = 889.15/x
  3. Step 3: Cross multiply
    3,228.97x = 4,843.57 × 889.15
  4. Step 4: Simplify right side
    3,228.97x = 4,306,669.99
  5. Step 5: Solve for x
    x = 4,306,669.99/3,228.97
  6. Step 6: Final answer
    x = 1,333.76

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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.