Home / 2,786.45-4,179.68-1,143.02

Finding the Fourth Proportional to 2,786.45, 4,179.68 and 1,143.02

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Solution

The fourth proportional to 2,786.45, 4,179.68 and 1,143.02 is: 1,714.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.45 : 4,179.68 = 1,143.02 : x
  2. Step 2: Convert to fraction form
    2,786.45/4,179.68 = 1,143.02/x
  3. Step 3: Cross multiply
    2,786.45x = 4,179.68 × 1,143.02
  4. Step 4: Simplify right side
    2,786.45x = 4,777,431.22
  5. Step 5: Solve for x
    x = 4,777,431.22/2,786.45
  6. Step 6: Final answer
    x = 1,714.53

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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.