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Finding the Fourth Proportional to 3,973.09, 5,471.76 and 3,887.00

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Solution

The fourth proportional to 3,973.09, 5,471.76 and 3,887.00 is: 5,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.09 : 5,471.76 = 3,887.00 : x
  2. Step 2: Convert to fraction form
    3,973.09/5,471.76 = 3,887.00/x
  3. Step 3: Cross multiply
    3,973.09x = 5,471.76 × 3,887.00
  4. Step 4: Simplify right side
    3,973.09x = 21,268,703.76
  5. Step 5: Solve for x
    x = 21,268,703.76/3,973.09
  6. Step 6: Final answer
    x = 5,353.19

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