Home / 4,163.68-5,745.72-2,275.28

Finding the Fourth Proportional to 4,163.68, 5,745.72 and 2,275.28

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Solution

The fourth proportional to 4,163.68, 5,745.72 and 2,275.28 is: 3,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,163.68 : 5,745.72 = 2,275.28 : x
  2. Step 2: Convert to fraction form
    4,163.68/5,745.72 = 2,275.28/x
  3. Step 3: Cross multiply
    4,163.68x = 5,745.72 × 2,275.28
  4. Step 4: Simplify right side
    4,163.68x = 13,073,121.80
  5. Step 5: Solve for x
    x = 13,073,121.80/4,163.68
  6. Step 6: Final answer
    x = 3,139.80

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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.