Home / 3,281.20-4,527.92-1,789.09

Finding the Fourth Proportional to 3,281.20, 4,527.92 and 1,789.09

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Solution

The fourth proportional to 3,281.20, 4,527.92 and 1,789.09 is: 2,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.20 : 4,527.92 = 1,789.09 : x
  2. Step 2: Convert to fraction form
    3,281.20/4,527.92 = 1,789.09/x
  3. Step 3: Cross multiply
    3,281.20x = 4,527.92 × 1,789.09
  4. Step 4: Simplify right side
    3,281.20x = 8,100,856.39
  5. Step 5: Solve for x
    x = 8,100,856.39/3,281.20
  6. Step 6: Final answer
    x = 2,468.87

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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.