Home / 3,849.78-5,763.93-1,996.92

Finding the Fourth Proportional to 3,849.78, 5,763.93 and 1,996.92

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Solution

The fourth proportional to 3,849.78, 5,763.93 and 1,996.92 is: 2,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.78 : 5,763.93 = 1,996.92 : x
  2. Step 2: Convert to fraction form
    3,849.78/5,763.93 = 1,996.92/x
  3. Step 3: Cross multiply
    3,849.78x = 5,763.93 × 1,996.92
  4. Step 4: Simplify right side
    3,849.78x = 11,510,107.10
  5. Step 5: Solve for x
    x = 11,510,107.10/3,849.78
  6. Step 6: Final answer
    x = 2,989.81

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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.