Home / 3,505.12-5,265.31-2,119.11

Finding the Fourth Proportional to 3,505.12, 5,265.31 and 2,119.11

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Solution

The fourth proportional to 3,505.12, 5,265.31 and 2,119.11 is: 3,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.12 : 5,265.31 = 2,119.11 : x
  2. Step 2: Convert to fraction form
    3,505.12/5,265.31 = 2,119.11/x
  3. Step 3: Cross multiply
    3,505.12x = 5,265.31 × 2,119.11
  4. Step 4: Simplify right side
    3,505.12x = 11,157,753.98
  5. Step 5: Solve for x
    x = 11,157,753.98/3,505.12
  6. Step 6: Final answer
    x = 3,183.28

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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.