Home / 2,791.21-4,183.55-2,760.38

Finding the Fourth Proportional to 2,791.21, 4,183.55 and 2,760.38

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Solution

The fourth proportional to 2,791.21, 4,183.55 and 2,760.38 is: 4,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.21 : 4,183.55 = 2,760.38 : x
  2. Step 2: Convert to fraction form
    2,791.21/4,183.55 = 2,760.38/x
  3. Step 3: Cross multiply
    2,791.21x = 4,183.55 × 2,760.38
  4. Step 4: Simplify right side
    2,791.21x = 11,548,179.07
  5. Step 5: Solve for x
    x = 11,548,179.07/2,791.21
  6. Step 6: Final answer
    x = 4,137.34

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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.