Home / 5,018.81-7,517.07-3,168.36

Finding the Fourth Proportional to 5,018.81, 7,517.07 and 3,168.36

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Solution

The fourth proportional to 5,018.81, 7,517.07 and 3,168.36 is: 4,745.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.81 : 7,517.07 = 3,168.36 : x
  2. Step 2: Convert to fraction form
    5,018.81/7,517.07 = 3,168.36/x
  3. Step 3: Cross multiply
    5,018.81x = 7,517.07 × 3,168.36
  4. Step 4: Simplify right side
    5,018.81x = 23,816,783.91
  5. Step 5: Solve for x
    x = 23,816,783.91/5,018.81
  6. Step 6: Final answer
    x = 4,745.51

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1.5x scale

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.