Home / 3,480.11-5,218.63-1,629.73

Finding the Fourth Proportional to 3,480.11, 5,218.63 and 1,629.73

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Solution

The fourth proportional to 3,480.11, 5,218.63 and 1,629.73 is: 2,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.11 : 5,218.63 = 1,629.73 : x
  2. Step 2: Convert to fraction form
    3,480.11/5,218.63 = 1,629.73/x
  3. Step 3: Cross multiply
    3,480.11x = 5,218.63 × 1,629.73
  4. Step 4: Simplify right side
    3,480.11x = 8,504,960.32
  5. Step 5: Solve for x
    x = 8,504,960.32/3,480.11
  6. Step 6: Final answer
    x = 2,443.88

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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.