Home / 3,163.80-4,357.62-2,742.60

Finding the Fourth Proportional to 3,163.80, 4,357.62 and 2,742.60

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Solution

The fourth proportional to 3,163.80, 4,357.62 and 2,742.60 is: 3,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.80 : 4,357.62 = 2,742.60 : x
  2. Step 2: Convert to fraction form
    3,163.80/4,357.62 = 2,742.60/x
  3. Step 3: Cross multiply
    3,163.80x = 4,357.62 × 2,742.60
  4. Step 4: Simplify right side
    3,163.80x = 11,951,208.61
  5. Step 5: Solve for x
    x = 11,951,208.61/3,163.80
  6. Step 6: Final answer
    x = 3,777.49

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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.