Home / 3,975.57-5,486.36-2,183.22

Finding the Fourth Proportional to 3,975.57, 5,486.36 and 2,183.22

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Solution

The fourth proportional to 3,975.57, 5,486.36 and 2,183.22 is: 3,012.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.57 : 5,486.36 = 2,183.22 : x
  2. Step 2: Convert to fraction form
    3,975.57/5,486.36 = 2,183.22/x
  3. Step 3: Cross multiply
    3,975.57x = 5,486.36 × 2,183.22
  4. Step 4: Simplify right side
    3,975.57x = 11,977,919.96
  5. Step 5: Solve for x
    x = 11,977,919.96/3,975.57
  6. Step 6: Final answer
    x = 3,012.88

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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.