Home / 3,821.92-5,735.46-1,631.12

Finding the Fourth Proportional to 3,821.92, 5,735.46 and 1,631.12

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Solution

The fourth proportional to 3,821.92, 5,735.46 and 1,631.12 is: 2,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.92 : 5,735.46 = 1,631.12 : x
  2. Step 2: Convert to fraction form
    3,821.92/5,735.46 = 1,631.12/x
  3. Step 3: Cross multiply
    3,821.92x = 5,735.46 × 1,631.12
  4. Step 4: Simplify right side
    3,821.92x = 9,355,223.52
  5. Step 5: Solve for x
    x = 9,355,223.52/3,821.92
  6. Step 6: Final answer
    x = 2,447.78

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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.