Home / 2,728.97-3,766.09-1,550.15

Finding the Fourth Proportional to 2,728.97, 3,766.09 and 1,550.15

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Solution

The fourth proportional to 2,728.97, 3,766.09 and 1,550.15 is: 2,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.97 : 3,766.09 = 1,550.15 : x
  2. Step 2: Convert to fraction form
    2,728.97/3,766.09 = 1,550.15/x
  3. Step 3: Cross multiply
    2,728.97x = 3,766.09 × 1,550.15
  4. Step 4: Simplify right side
    2,728.97x = 5,838,004.41
  5. Step 5: Solve for x
    x = 5,838,004.41/2,728.97
  6. Step 6: Final answer
    x = 2,139.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.