Home / 3,918.51-5,407.83-2,150.15

Finding the Fourth Proportional to 3,918.51, 5,407.83 and 2,150.15

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Solution

The fourth proportional to 3,918.51, 5,407.83 and 2,150.15 is: 2,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.51 : 5,407.83 = 2,150.15 : x
  2. Step 2: Convert to fraction form
    3,918.51/5,407.83 = 2,150.15/x
  3. Step 3: Cross multiply
    3,918.51x = 5,407.83 × 2,150.15
  4. Step 4: Simplify right side
    3,918.51x = 11,627,618.64
  5. Step 5: Solve for x
    x = 11,627,618.64/3,918.51
  6. Step 6: Final answer
    x = 2,967.36

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