Home / 5,057.78-6,982.30-3,170.48

Finding the Fourth Proportional to 5,057.78, 6,982.30 and 3,170.48

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Solution

The fourth proportional to 5,057.78, 6,982.30 and 3,170.48 is: 4,376.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.78 : 6,982.30 = 3,170.48 : x
  2. Step 2: Convert to fraction form
    5,057.78/6,982.30 = 3,170.48/x
  3. Step 3: Cross multiply
    5,057.78x = 6,982.30 × 3,170.48
  4. Step 4: Simplify right side
    5,057.78x = 22,137,211.56
  5. Step 5: Solve for x
    x = 22,137,211.56/5,057.78
  6. Step 6: Final answer
    x = 4,376.87

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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.