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Finding the Fourth Proportional to 3,281.28, 4,528.17 and 1,789.17

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Solution

The fourth proportional to 3,281.28, 4,528.17 and 1,789.17 is: 2,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.28 : 4,528.17 = 1,789.17 : x
  2. Step 2: Convert to fraction form
    3,281.28/4,528.17 = 1,789.17/x
  3. Step 3: Cross multiply
    3,281.28x = 4,528.17 × 1,789.17
  4. Step 4: Simplify right side
    3,281.28x = 8,101,665.92
  5. Step 5: Solve for x
    x = 8,101,665.92/3,281.28
  6. Step 6: Final answer
    x = 2,469.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.