Home / 3,786.45-5,668.89-2,551.40

Finding the Fourth Proportional to 3,786.45, 5,668.89 and 2,551.40

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Solution

The fourth proportional to 3,786.45, 5,668.89 and 2,551.40 is: 3,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.45 : 5,668.89 = 2,551.40 : x
  2. Step 2: Convert to fraction form
    3,786.45/5,668.89 = 2,551.40/x
  3. Step 3: Cross multiply
    3,786.45x = 5,668.89 × 2,551.40
  4. Step 4: Simplify right side
    3,786.45x = 14,463,589.29
  5. Step 5: Solve for x
    x = 14,463,589.29/3,786.45
  6. Step 6: Final answer
    x = 3,819.83

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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.