Home / 3,278.06-4,912.04-1,959.20

Finding the Fourth Proportional to 3,278.06, 4,912.04 and 1,959.20

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Solution

The fourth proportional to 3,278.06, 4,912.04 and 1,959.20 is: 2,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.06 : 4,912.04 = 1,959.20 : x
  2. Step 2: Convert to fraction form
    3,278.06/4,912.04 = 1,959.20/x
  3. Step 3: Cross multiply
    3,278.06x = 4,912.04 × 1,959.20
  4. Step 4: Simplify right side
    3,278.06x = 9,623,668.77
  5. Step 5: Solve for x
    x = 9,623,668.77/3,278.06
  6. Step 6: Final answer
    x = 2,935.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.