Home / 3,748.89-5,622.36-1,115.78

Finding the Fourth Proportional to 3,748.89, 5,622.36 and 1,115.78

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Solution

The fourth proportional to 3,748.89, 5,622.36 and 1,115.78 is: 1,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.89 : 5,622.36 = 1,115.78 : x
  2. Step 2: Convert to fraction form
    3,748.89/5,622.36 = 1,115.78/x
  3. Step 3: Cross multiply
    3,748.89x = 5,622.36 × 1,115.78
  4. Step 4: Simplify right side
    3,748.89x = 6,273,288.73
  5. Step 5: Solve for x
    x = 6,273,288.73/3,748.89
  6. Step 6: Final answer
    x = 1,673.37

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