Home / 3,312.63-4,968.61-1,121.33

Finding the Fourth Proportional to 3,312.63, 4,968.61 and 1,121.33

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Solution

The fourth proportional to 3,312.63, 4,968.61 and 1,121.33 is: 1,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.63 : 4,968.61 = 1,121.33 : x
  2. Step 2: Convert to fraction form
    3,312.63/4,968.61 = 1,121.33/x
  3. Step 3: Cross multiply
    3,312.63x = 4,968.61 × 1,121.33
  4. Step 4: Simplify right side
    3,312.63x = 5,571,451.45
  5. Step 5: Solve for x
    x = 5,571,451.45/3,312.63
  6. Step 6: Final answer
    x = 1,681.88

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