Home / 3,951.60-5,453.21-2,183.22

Finding the Fourth Proportional to 3,951.60, 5,453.21 and 2,183.22

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Solution

The fourth proportional to 3,951.60, 5,453.21 and 2,183.22 is: 3,012.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.60 : 5,453.21 = 2,183.22 : x
  2. Step 2: Convert to fraction form
    3,951.60/5,453.21 = 2,183.22/x
  3. Step 3: Cross multiply
    3,951.60x = 5,453.21 × 2,183.22
  4. Step 4: Simplify right side
    3,951.60x = 11,905,518.95
  5. Step 5: Solve for x
    x = 11,905,518.95/3,951.60
  6. Step 6: Final answer
    x = 3,012.84

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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.