Home / 2,057.38-3,086.06-518.38

Finding the Fourth Proportional to 2,057.38, 3,086.06 and 518.38

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Solution

The fourth proportional to 2,057.38, 3,086.06 and 518.38 is: 777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.38 : 3,086.06 = 518.38 : x
  2. Step 2: Convert to fraction form
    2,057.38/3,086.06 = 518.38/x
  3. Step 3: Cross multiply
    2,057.38x = 3,086.06 × 518.38
  4. Step 4: Simplify right side
    2,057.38x = 1,599,751.78
  5. Step 5: Solve for x
    x = 1,599,751.78/2,057.38
  6. Step 6: Final answer
    x = 777.57

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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.