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Finding the Fourth Proportional to 2,642.77, 3,962.46 and 1,326.16

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Solution

The fourth proportional to 2,642.77, 3,962.46 and 1,326.16 is: 1,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.77 : 3,962.46 = 1,326.16 : x
  2. Step 2: Convert to fraction form
    2,642.77/3,962.46 = 1,326.16/x
  3. Step 3: Cross multiply
    2,642.77x = 3,962.46 × 1,326.16
  4. Step 4: Simplify right side
    2,642.77x = 5,254,855.95
  5. Step 5: Solve for x
    x = 5,254,855.95/2,642.77
  6. Step 6: Final answer
    x = 1,988.39

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