Home / 5,135.46-7,704.81-2,016.78

Finding the Fourth Proportional to 5,135.46, 7,704.81 and 2,016.78

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Solution

The fourth proportional to 5,135.46, 7,704.81 and 2,016.78 is: 3,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.46 : 7,704.81 = 2,016.78 : x
  2. Step 2: Convert to fraction form
    5,135.46/7,704.81 = 2,016.78/x
  3. Step 3: Cross multiply
    5,135.46x = 7,704.81 × 2,016.78
  4. Step 4: Simplify right side
    5,135.46x = 15,538,906.71
  5. Step 5: Solve for x
    x = 15,538,906.71/5,135.46
  6. Step 6: Final answer
    x = 3,025.81

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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.