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Finding the Fourth Proportional to 3,641.63, 5,025.44 and 1,985.63

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Solution

The fourth proportional to 3,641.63, 5,025.44 and 1,985.63 is: 2,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.63 : 5,025.44 = 1,985.63 : x
  2. Step 2: Convert to fraction form
    3,641.63/5,025.44 = 1,985.63/x
  3. Step 3: Cross multiply
    3,641.63x = 5,025.44 × 1,985.63
  4. Step 4: Simplify right side
    3,641.63x = 9,978,644.26
  5. Step 5: Solve for x
    x = 9,978,644.26/3,641.63
  6. Step 6: Final answer
    x = 2,740.16

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