Home / 3,286.80-4,535.68-1,959.82

Finding the Fourth Proportional to 3,286.80, 4,535.68 and 1,959.82

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Solution

The fourth proportional to 3,286.80, 4,535.68 and 1,959.82 is: 2,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.80 : 4,535.68 = 1,959.82 : x
  2. Step 2: Convert to fraction form
    3,286.80/4,535.68 = 1,959.82/x
  3. Step 3: Cross multiply
    3,286.80x = 4,535.68 × 1,959.82
  4. Step 4: Simplify right side
    3,286.80x = 8,889,116.38
  5. Step 5: Solve for x
    x = 8,889,116.38/3,286.80
  6. Step 6: Final answer
    x = 2,704.49

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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.