Home / 3,951.96-5,453.78-2,183.64

Finding the Fourth Proportional to 3,951.96, 5,453.78 and 2,183.64

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Solution

The fourth proportional to 3,951.96, 5,453.78 and 2,183.64 is: 3,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.96 : 5,453.78 = 2,183.64 : x
  2. Step 2: Convert to fraction form
    3,951.96/5,453.78 = 2,183.64/x
  3. Step 3: Cross multiply
    3,951.96x = 5,453.78 × 2,183.64
  4. Step 4: Simplify right side
    3,951.96x = 11,909,081.24
  5. Step 5: Solve for x
    x = 11,909,081.24/3,951.96
  6. Step 6: Final answer
    x = 3,013.46

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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.