Home / 3,713.72-5,571.14-1,214.12

Finding the Fourth Proportional to 3,713.72, 5,571.14 and 1,214.12

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Solution

The fourth proportional to 3,713.72, 5,571.14 and 1,214.12 is: 1,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.72 : 5,571.14 = 1,214.12 : x
  2. Step 2: Convert to fraction form
    3,713.72/5,571.14 = 1,214.12/x
  3. Step 3: Cross multiply
    3,713.72x = 5,571.14 × 1,214.12
  4. Step 4: Simplify right side
    3,713.72x = 6,764,007.68
  5. Step 5: Solve for x
    x = 6,764,007.68/3,713.72
  6. Step 6: Final answer
    x = 1,821.36

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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.