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Finding the Fourth Proportional to 3,881.95, 5,822.11 and 1,249.69

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Solution

The fourth proportional to 3,881.95, 5,822.11 and 1,249.69 is: 1,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.95 : 5,822.11 = 1,249.69 : x
  2. Step 2: Convert to fraction form
    3,881.95/5,822.11 = 1,249.69/x
  3. Step 3: Cross multiply
    3,881.95x = 5,822.11 × 1,249.69
  4. Step 4: Simplify right side
    3,881.95x = 7,275,836.80
  5. Step 5: Solve for x
    x = 7,275,836.80/3,881.95
  6. Step 6: Final answer
    x = 1,874.27

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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.