Home / 2,723.78-3,759.43-1,661.90

Finding the Fourth Proportional to 2,723.78, 3,759.43 and 1,661.90

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Solution

The fourth proportional to 2,723.78, 3,759.43 and 1,661.90 is: 2,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.78 : 3,759.43 = 1,661.90 : x
  2. Step 2: Convert to fraction form
    2,723.78/3,759.43 = 1,661.90/x
  3. Step 3: Cross multiply
    2,723.78x = 3,759.43 × 1,661.90
  4. Step 4: Simplify right side
    2,723.78x = 6,247,796.72
  5. Step 5: Solve for x
    x = 6,247,796.72/2,723.78
  6. Step 6: Final answer
    x = 2,293.80

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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.