Home / 5,620.82-8,431.63-2,158.07

Finding the Fourth Proportional to 5,620.82, 8,431.63 and 2,158.07

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Solution

The fourth proportional to 5,620.82, 8,431.63 and 2,158.07 is: 3,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.82 : 8,431.63 = 2,158.07 : x
  2. Step 2: Convert to fraction form
    5,620.82/8,431.63 = 2,158.07/x
  3. Step 3: Cross multiply
    5,620.82x = 8,431.63 × 2,158.07
  4. Step 4: Simplify right side
    5,620.82x = 18,196,005.60
  5. Step 5: Solve for x
    x = 18,196,005.60/5,620.82
  6. Step 6: Final answer
    x = 3,237.25

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