Home / 3,951.89-5,453.50-2,183.21

Finding the Fourth Proportional to 3,951.89, 5,453.50 and 2,183.21

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Solution

The fourth proportional to 3,951.89, 5,453.50 and 2,183.21 is: 3,012.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.89 : 5,453.50 = 2,183.21 : x
  2. Step 2: Convert to fraction form
    3,951.89/5,453.50 = 2,183.21/x
  3. Step 3: Cross multiply
    3,951.89x = 5,453.50 × 2,183.21
  4. Step 4: Simplify right side
    3,951.89x = 11,906,135.74
  5. Step 5: Solve for x
    x = 11,906,135.74/3,951.89
  6. Step 6: Final answer
    x = 3,012.77

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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.