Home / 3,768.19-5,199.78-2,196.43

Finding the Fourth Proportional to 3,768.19, 5,199.78 and 2,196.43

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Solution

The fourth proportional to 3,768.19, 5,199.78 and 2,196.43 is: 3,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.19 : 5,199.78 = 2,196.43 : x
  2. Step 2: Convert to fraction form
    3,768.19/5,199.78 = 2,196.43/x
  3. Step 3: Cross multiply
    3,768.19x = 5,199.78 × 2,196.43
  4. Step 4: Simplify right side
    3,768.19x = 11,420,952.79
  5. Step 5: Solve for x
    x = 11,420,952.79/3,768.19
  6. Step 6: Final answer
    x = 3,030.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.