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Finding the Fourth Proportional to 3,984.82, 5,978.44 and 2,038.39

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Solution

The fourth proportional to 3,984.82, 5,978.44 and 2,038.39 is: 3,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.82 : 5,978.44 = 2,038.39 : x
  2. Step 2: Convert to fraction form
    3,984.82/5,978.44 = 2,038.39/x
  3. Step 3: Cross multiply
    3,984.82x = 5,978.44 × 2,038.39
  4. Step 4: Simplify right side
    3,984.82x = 12,186,362.42
  5. Step 5: Solve for x
    x = 12,186,362.42/3,984.82
  6. Step 6: Final answer
    x = 3,058.20

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