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Finding the Fourth Proportional to 3,846.54, 5,769.79 and 1,249.48

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Solution

The fourth proportional to 3,846.54, 5,769.79 and 1,249.48 is: 1,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.54 : 5,769.79 = 1,249.48 : x
  2. Step 2: Convert to fraction form
    3,846.54/5,769.79 = 1,249.48/x
  3. Step 3: Cross multiply
    3,846.54x = 5,769.79 × 1,249.48
  4. Step 4: Simplify right side
    3,846.54x = 7,209,237.21
  5. Step 5: Solve for x
    x = 7,209,237.21/3,846.54
  6. Step 6: Final answer
    x = 1,874.21

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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.