Home / 2,125.43-3,183.81-1,082.35

Finding the Fourth Proportional to 2,125.43, 3,183.81 and 1,082.35

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Solution

The fourth proportional to 2,125.43, 3,183.81 and 1,082.35 is: 1,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.43 : 3,183.81 = 1,082.35 : x
  2. Step 2: Convert to fraction form
    2,125.43/3,183.81 = 1,082.35/x
  3. Step 3: Cross multiply
    2,125.43x = 3,183.81 × 1,082.35
  4. Step 4: Simplify right side
    2,125.43x = 3,445,996.75
  5. Step 5: Solve for x
    x = 3,445,996.75/2,125.43
  6. Step 6: Final answer
    x = 1,621.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.