Home / 3,630.25-5,446.19-1,321.75

Finding the Fourth Proportional to 3,630.25, 5,446.19 and 1,321.75

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Solution

The fourth proportional to 3,630.25, 5,446.19 and 1,321.75 is: 1,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.25 : 5,446.19 = 1,321.75 : x
  2. Step 2: Convert to fraction form
    3,630.25/5,446.19 = 1,321.75/x
  3. Step 3: Cross multiply
    3,630.25x = 5,446.19 × 1,321.75
  4. Step 4: Simplify right side
    3,630.25x = 7,198,501.63
  5. Step 5: Solve for x
    x = 7,198,501.63/3,630.25
  6. Step 6: Final answer
    x = 1,982.92

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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.