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Finding the Fourth Proportional to 1,255.97, 1,734.69 and 1,183.07

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Solution

The fourth proportional to 1,255.97, 1,734.69 and 1,183.07 is: 1,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.97 : 1,734.69 = 1,183.07 : x
  2. Step 2: Convert to fraction form
    1,255.97/1,734.69 = 1,183.07/x
  3. Step 3: Cross multiply
    1,255.97x = 1,734.69 × 1,183.07
  4. Step 4: Simplify right side
    1,255.97x = 2,052,251.02
  5. Step 5: Solve for x
    x = 2,052,251.02/1,255.97
  6. Step 6: Final answer
    x = 1,634.00

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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.