Home / 5,211.05-7,816.57-3,896.15

Finding the Fourth Proportional to 5,211.05, 7,816.57 and 3,896.15

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Solution

The fourth proportional to 5,211.05, 7,816.57 and 3,896.15 is: 5,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.05 : 7,816.57 = 3,896.15 : x
  2. Step 2: Convert to fraction form
    5,211.05/7,816.57 = 3,896.15/x
  3. Step 3: Cross multiply
    5,211.05x = 7,816.57 × 3,896.15
  4. Step 4: Simplify right side
    5,211.05x = 30,454,480.38
  5. Step 5: Solve for x
    x = 30,454,480.38/5,211.05
  6. Step 6: Final answer
    x = 5,844.22

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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.