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Finding the Fourth Proportional to 4,513.92, 6,767.64 and 1,915.44

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Solution

The fourth proportional to 4,513.92, 6,767.64 and 1,915.44 is: 2,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,513.92 : 6,767.64 = 1,915.44 : x
  2. Step 2: Convert to fraction form
    4,513.92/6,767.64 = 1,915.44/x
  3. Step 3: Cross multiply
    4,513.92x = 6,767.64 × 1,915.44
  4. Step 4: Simplify right side
    4,513.92x = 12,963,008.36
  5. Step 5: Solve for x
    x = 12,963,008.36/4,513.92
  6. Step 6: Final answer
    x = 2,871.79

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