Home / 7,272.44-10,912.78-3,112.08

Finding the Fourth Proportional to 7,272.44, 10,912.78 and 3,112.08

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Solution

The fourth proportional to 7,272.44, 10,912.78 and 3,112.08 is: 4,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.44 : 10,912.78 = 3,112.08 : x
  2. Step 2: Convert to fraction form
    7,272.44/10,912.78 = 3,112.08/x
  3. Step 3: Cross multiply
    7,272.44x = 10,912.78 × 3,112.08
  4. Step 4: Simplify right side
    7,272.44x = 33,961,436.60
  5. Step 5: Solve for x
    x = 33,961,436.60/7,272.44
  6. Step 6: Final answer
    x = 4,669.88

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1.5x scale

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.