Home / 4,815.15-7,222.73-3,091.47

Finding the Fourth Proportional to 4,815.15, 7,222.73 and 3,091.47

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Solution

The fourth proportional to 4,815.15, 7,222.73 and 3,091.47 is: 4,637.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.15 : 7,222.73 = 3,091.47 : x
  2. Step 2: Convert to fraction form
    4,815.15/7,222.73 = 3,091.47/x
  3. Step 3: Cross multiply
    4,815.15x = 7,222.73 × 3,091.47
  4. Step 4: Simplify right side
    4,815.15x = 22,328,837.66
  5. Step 5: Solve for x
    x = 22,328,837.66/4,815.15
  6. Step 6: Final answer
    x = 4,637.21

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