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Finding the Fourth Proportional to 6,418.61, 9,625.42 and 1,974.95

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Solution

The fourth proportional to 6,418.61, 9,625.42 and 1,974.95 is: 2,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.61 : 9,625.42 = 1,974.95 : x
  2. Step 2: Convert to fraction form
    6,418.61/9,625.42 = 1,974.95/x
  3. Step 3: Cross multiply
    6,418.61x = 9,625.42 × 1,974.95
  4. Step 4: Simplify right side
    6,418.61x = 19,009,713.35
  5. Step 5: Solve for x
    x = 19,009,713.35/6,418.61
  6. Step 6: Final answer
    x = 2,961.66

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