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Finding the Fourth Proportional to 2,691.75, 4,032.36 and 1,764.48

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Solution

The fourth proportional to 2,691.75, 4,032.36 and 1,764.48 is: 2,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.75 : 4,032.36 = 1,764.48 : x
  2. Step 2: Convert to fraction form
    2,691.75/4,032.36 = 1,764.48/x
  3. Step 3: Cross multiply
    2,691.75x = 4,032.36 × 1,764.48
  4. Step 4: Simplify right side
    2,691.75x = 7,115,018.57
  5. Step 5: Solve for x
    x = 7,115,018.57/2,691.75
  6. Step 6: Final answer
    x = 2,643.27

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