Home / 5,163.64-7,125.46-2,805.73

Finding the Fourth Proportional to 5,163.64, 7,125.46 and 2,805.73

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Solution

The fourth proportional to 5,163.64, 7,125.46 and 2,805.73 is: 3,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.64 : 7,125.46 = 2,805.73 : x
  2. Step 2: Convert to fraction form
    5,163.64/7,125.46 = 2,805.73/x
  3. Step 3: Cross multiply
    5,163.64x = 7,125.46 × 2,805.73
  4. Step 4: Simplify right side
    5,163.64x = 19,992,092.06
  5. Step 5: Solve for x
    x = 19,992,092.06/5,163.64
  6. Step 6: Final answer
    x = 3,871.71

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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.