Home / 3,980.80-5,966.34-2,245.78

Finding the Fourth Proportional to 3,980.80, 5,966.34 and 2,245.78

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Solution

The fourth proportional to 3,980.80, 5,966.34 and 2,245.78 is: 3,365.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.80 : 5,966.34 = 2,245.78 : x
  2. Step 2: Convert to fraction form
    3,980.80/5,966.34 = 2,245.78/x
  3. Step 3: Cross multiply
    3,980.80x = 5,966.34 × 2,245.78
  4. Step 4: Simplify right side
    3,980.80x = 13,399,087.05
  5. Step 5: Solve for x
    x = 13,399,087.05/3,980.80
  6. Step 6: Final answer
    x = 3,365.93

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