Home / 3,949.14-5,923.68-1,640.64

Finding the Fourth Proportional to 3,949.14, 5,923.68 and 1,640.64

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Solution

The fourth proportional to 3,949.14, 5,923.68 and 1,640.64 is: 2,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.14 : 5,923.68 = 1,640.64 : x
  2. Step 2: Convert to fraction form
    3,949.14/5,923.68 = 1,640.64/x
  3. Step 3: Cross multiply
    3,949.14x = 5,923.68 × 1,640.64
  4. Step 4: Simplify right side
    3,949.14x = 9,718,626.36
  5. Step 5: Solve for x
    x = 9,718,626.36/3,949.14
  6. Step 6: Final answer
    x = 2,460.95

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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.