Home / 2,745.30-3,791.76-2,080.68

Finding the Fourth Proportional to 2,745.30, 3,791.76 and 2,080.68

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Solution

The fourth proportional to 2,745.30, 3,791.76 and 2,080.68 is: 2,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.30 : 3,791.76 = 2,080.68 : x
  2. Step 2: Convert to fraction form
    2,745.30/3,791.76 = 2,080.68/x
  3. Step 3: Cross multiply
    2,745.30x = 3,791.76 × 2,080.68
  4. Step 4: Simplify right side
    2,745.30x = 7,889,439.20
  5. Step 5: Solve for x
    x = 7,889,439.20/2,745.30
  6. Step 6: Final answer
    x = 2,873.80

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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.