Home / 3,286.87-4,535.13-1,960.31

Finding the Fourth Proportional to 3,286.87, 4,535.13 and 1,960.31

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Solution

The fourth proportional to 3,286.87, 4,535.13 and 1,960.31 is: 2,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.87 : 4,535.13 = 1,960.31 : x
  2. Step 2: Convert to fraction form
    3,286.87/4,535.13 = 1,960.31/x
  3. Step 3: Cross multiply
    3,286.87x = 4,535.13 × 1,960.31
  4. Step 4: Simplify right side
    3,286.87x = 8,890,279.38
  5. Step 5: Solve for x
    x = 8,890,279.38/3,286.87
  6. Step 6: Final answer
    x = 2,704.79

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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.