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Finding the Fourth Proportional to 5,207.16, 7,811.28 and 1,744.68

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Solution

The fourth proportional to 5,207.16, 7,811.28 and 1,744.68 is: 2,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.16 : 7,811.28 = 1,744.68 : x
  2. Step 2: Convert to fraction form
    5,207.16/7,811.28 = 1,744.68/x
  3. Step 3: Cross multiply
    5,207.16x = 7,811.28 × 1,744.68
  4. Step 4: Simplify right side
    5,207.16x = 13,628,183.99
  5. Step 5: Solve for x
    x = 13,628,183.99/5,207.16
  6. Step 6: Final answer
    x = 2,617.20

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