Home / 4,072.78-6,115.80-3,769.60

Finding the Fourth Proportional to 4,072.78, 6,115.80 and 3,769.60

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Solution

The fourth proportional to 4,072.78, 6,115.80 and 3,769.60 is: 5,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.78 : 6,115.80 = 3,769.60 : x
  2. Step 2: Convert to fraction form
    4,072.78/6,115.80 = 3,769.60/x
  3. Step 3: Cross multiply
    4,072.78x = 6,115.80 × 3,769.60
  4. Step 4: Simplify right side
    4,072.78x = 23,054,119.68
  5. Step 5: Solve for x
    x = 23,054,119.68/4,072.78
  6. Step 6: Final answer
    x = 5,660.54

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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.