Home / 3,949.25-5,923.90-1,640.75

Finding the Fourth Proportional to 3,949.25, 5,923.90 and 1,640.75

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Solution

The fourth proportional to 3,949.25, 5,923.90 and 1,640.75 is: 2,461.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.25 : 5,923.90 = 1,640.75 : x
  2. Step 2: Convert to fraction form
    3,949.25/5,923.90 = 1,640.75/x
  3. Step 3: Cross multiply
    3,949.25x = 5,923.90 × 1,640.75
  4. Step 4: Simplify right side
    3,949.25x = 9,719,638.93
  5. Step 5: Solve for x
    x = 9,719,638.93/3,949.25
  6. Step 6: Final answer
    x = 2,461.14

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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.