Home / 3,949.38-5,924.09-1,640.88

Finding the Fourth Proportional to 3,949.38, 5,924.09 and 1,640.88

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Solution

The fourth proportional to 3,949.38, 5,924.09 and 1,640.88 is: 2,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.38 : 5,924.09 = 1,640.88 : x
  2. Step 2: Convert to fraction form
    3,949.38/5,924.09 = 1,640.88/x
  3. Step 3: Cross multiply
    3,949.38x = 5,924.09 × 1,640.88
  4. Step 4: Simplify right side
    3,949.38x = 9,720,720.80
  5. Step 5: Solve for x
    x = 9,720,720.80/3,949.38
  6. Step 6: Final answer
    x = 2,461.33

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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.