Home / 3,840.27-5,299.67-2,161.73

Finding the Fourth Proportional to 3,840.27, 5,299.67 and 2,161.73

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Solution

The fourth proportional to 3,840.27, 5,299.67 and 2,161.73 is: 2,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.27 : 5,299.67 = 2,161.73 : x
  2. Step 2: Convert to fraction form
    3,840.27/5,299.67 = 2,161.73/x
  3. Step 3: Cross multiply
    3,840.27x = 5,299.67 × 2,161.73
  4. Step 4: Simplify right side
    3,840.27x = 11,456,473.49
  5. Step 5: Solve for x
    x = 11,456,473.49/3,840.27
  6. Step 6: Final answer
    x = 2,983.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.