Home / 3,812.24-5,715.80-1,961.04

Finding the Fourth Proportional to 3,812.24, 5,715.80 and 1,961.04

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Solution

The fourth proportional to 3,812.24, 5,715.80 and 1,961.04 is: 2,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.24 : 5,715.80 = 1,961.04 : x
  2. Step 2: Convert to fraction form
    3,812.24/5,715.80 = 1,961.04/x
  3. Step 3: Cross multiply
    3,812.24x = 5,715.80 × 1,961.04
  4. Step 4: Simplify right side
    3,812.24x = 11,208,912.43
  5. Step 5: Solve for x
    x = 11,208,912.43/3,812.24
  6. Step 6: Final answer
    x = 2,940.24

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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.