Home / 3,325.20-4,981.56-2,780.88

Finding the Fourth Proportional to 3,325.20, 4,981.56 and 2,780.88

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Solution

The fourth proportional to 3,325.20, 4,981.56 and 2,780.88 is: 4,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.20 : 4,981.56 = 2,780.88 : x
  2. Step 2: Convert to fraction form
    3,325.20/4,981.56 = 2,780.88/x
  3. Step 3: Cross multiply
    3,325.20x = 4,981.56 × 2,780.88
  4. Step 4: Simplify right side
    3,325.20x = 13,853,120.57
  5. Step 5: Solve for x
    x = 13,853,120.57/3,325.20
  6. Step 6: Final answer
    x = 4,166.10

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