Home / 2,786.73-4,180.10-1,142.90

Finding the Fourth Proportional to 2,786.73, 4,180.10 and 1,142.90

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Solution

The fourth proportional to 2,786.73, 4,180.10 and 1,142.90 is: 1,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.73 : 4,180.10 = 1,142.90 : x
  2. Step 2: Convert to fraction form
    2,786.73/4,180.10 = 1,142.90/x
  3. Step 3: Cross multiply
    2,786.73x = 4,180.10 × 1,142.90
  4. Step 4: Simplify right side
    2,786.73x = 4,777,441.03
  5. Step 5: Solve for x
    x = 4,777,441.03/2,786.73
  6. Step 6: Final answer
    x = 1,714.35

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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.