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Finding the Fourth Proportional to 1,969.07, 2,949.56 and 1,422.35

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Solution

The fourth proportional to 1,969.07, 2,949.56 and 1,422.35 is: 2,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.07 : 2,949.56 = 1,422.35 : x
  2. Step 2: Convert to fraction form
    1,969.07/2,949.56 = 1,422.35/x
  3. Step 3: Cross multiply
    1,969.07x = 2,949.56 × 1,422.35
  4. Step 4: Simplify right side
    1,969.07x = 4,195,299.55
  5. Step 5: Solve for x
    x = 4,195,299.55/1,969.07
  6. Step 6: Final answer
    x = 2,130.60

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