Home / 2,616.87-3,923.42-1,229.48

Finding the Fourth Proportional to 2,616.87, 3,923.42 and 1,229.48

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Solution

The fourth proportional to 2,616.87, 3,923.42 and 1,229.48 is: 1,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.87 : 3,923.42 = 1,229.48 : x
  2. Step 2: Convert to fraction form
    2,616.87/3,923.42 = 1,229.48/x
  3. Step 3: Cross multiply
    2,616.87x = 3,923.42 × 1,229.48
  4. Step 4: Simplify right side
    2,616.87x = 4,823,740.66
  5. Step 5: Solve for x
    x = 4,823,740.66/2,616.87
  6. Step 6: Final answer
    x = 1,843.32

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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.