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Finding the Fourth Proportional to 2,663.48, 3,986.97 and 2,080.18

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Solution

The fourth proportional to 2,663.48, 3,986.97 and 2,080.18 is: 3,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.48 : 3,986.97 = 2,080.18 : x
  2. Step 2: Convert to fraction form
    2,663.48/3,986.97 = 2,080.18/x
  3. Step 3: Cross multiply
    2,663.48x = 3,986.97 × 2,080.18
  4. Step 4: Simplify right side
    2,663.48x = 8,293,624.14
  5. Step 5: Solve for x
    x = 8,293,624.14/2,663.48
  6. Step 6: Final answer
    x = 3,113.83

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