Home / 7,769.42-11,647.60-3,383.57

Finding the Fourth Proportional to 7,769.42, 11,647.60 and 3,383.57

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Solution

The fourth proportional to 7,769.42, 11,647.60 and 3,383.57 is: 5,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.42 : 11,647.60 = 3,383.57 : x
  2. Step 2: Convert to fraction form
    7,769.42/11,647.60 = 3,383.57/x
  3. Step 3: Cross multiply
    7,769.42x = 11,647.60 × 3,383.57
  4. Step 4: Simplify right side
    7,769.42x = 39,410,490.59
  5. Step 5: Solve for x
    x = 39,410,490.59/7,769.42
  6. Step 6: Final answer
    x = 5,072.51

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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.