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Finding the Fourth Proportional to 5,276.84, 7,917.55 and 2,505.47

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Solution

The fourth proportional to 5,276.84, 7,917.55 and 2,505.47 is: 3,759.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.84 : 7,917.55 = 2,505.47 : x
  2. Step 2: Convert to fraction form
    5,276.84/7,917.55 = 2,505.47/x
  3. Step 3: Cross multiply
    5,276.84x = 7,917.55 × 2,505.47
  4. Step 4: Simplify right side
    5,276.84x = 19,837,138.15
  5. Step 5: Solve for x
    x = 19,837,138.15/5,276.84
  6. Step 6: Final answer
    x = 3,759.29

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