Home / 3,786.08-5,678.68-1,012.96

Finding the Fourth Proportional to 3,786.08, 5,678.68 and 1,012.96

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Solution

The fourth proportional to 3,786.08, 5,678.68 and 1,012.96 is: 1,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.08 : 5,678.68 = 1,012.96 : x
  2. Step 2: Convert to fraction form
    3,786.08/5,678.68 = 1,012.96/x
  3. Step 3: Cross multiply
    3,786.08x = 5,678.68 × 1,012.96
  4. Step 4: Simplify right side
    3,786.08x = 5,752,270.63
  5. Step 5: Solve for x
    x = 5,752,270.63/3,786.08
  6. Step 6: Final answer
    x = 1,519.32

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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.