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Finding the Fourth Proportional to 3,846.60, 5,770.62 and 1,249.56

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Solution

The fourth proportional to 3,846.60, 5,770.62 and 1,249.56 is: 1,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.60 : 5,770.62 = 1,249.56 : x
  2. Step 2: Convert to fraction form
    3,846.60/5,770.62 = 1,249.56/x
  3. Step 3: Cross multiply
    3,846.60x = 5,770.62 × 1,249.56
  4. Step 4: Simplify right side
    3,846.60x = 7,210,735.93
  5. Step 5: Solve for x
    x = 7,210,735.93/3,846.60
  6. Step 6: Final answer
    x = 1,874.57

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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.