Home / 3,811.44-5,715.94-1,213.77

Finding the Fourth Proportional to 3,811.44, 5,715.94 and 1,213.77

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Solution

The fourth proportional to 3,811.44, 5,715.94 and 1,213.77 is: 1,820.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.44 : 5,715.94 = 1,213.77 : x
  2. Step 2: Convert to fraction form
    3,811.44/5,715.94 = 1,213.77/x
  3. Step 3: Cross multiply
    3,811.44x = 5,715.94 × 1,213.77
  4. Step 4: Simplify right side
    3,811.44x = 6,937,836.49
  5. Step 5: Solve for x
    x = 6,937,836.49/3,811.44
  6. Step 6: Final answer
    x = 1,820.27

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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.