Home / 1,112.01-1,667.40-1,091.35

Finding the Fourth Proportional to 1,112.01, 1,667.40 and 1,091.35

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Solution

The fourth proportional to 1,112.01, 1,667.40 and 1,091.35 is: 1,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.01 : 1,667.40 = 1,091.35 : x
  2. Step 2: Convert to fraction form
    1,112.01/1,667.40 = 1,091.35/x
  3. Step 3: Cross multiply
    1,112.01x = 1,667.40 × 1,091.35
  4. Step 4: Simplify right side
    1,112.01x = 1,819,716.99
  5. Step 5: Solve for x
    x = 1,819,716.99/1,112.01
  6. Step 6: Final answer
    x = 1,636.42

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