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Finding the Fourth Proportional to 2,576.16, 3,862.14 and 1,276.92

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Solution

The fourth proportional to 2,576.16, 3,862.14 and 1,276.92 is: 1,914.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.16 : 3,862.14 = 1,276.92 : x
  2. Step 2: Convert to fraction form
    2,576.16/3,862.14 = 1,276.92/x
  3. Step 3: Cross multiply
    2,576.16x = 3,862.14 × 1,276.92
  4. Step 4: Simplify right side
    2,576.16x = 4,931,643.81
  5. Step 5: Solve for x
    x = 4,931,643.81/2,576.16
  6. Step 6: Final answer
    x = 1,914.34

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