Home / 2,786.13-4,179.33-1,142.91

Finding the Fourth Proportional to 2,786.13, 4,179.33 and 1,142.91

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Solution

The fourth proportional to 2,786.13, 4,179.33 and 1,142.91 is: 1,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.13 : 4,179.33 = 1,142.91 : x
  2. Step 2: Convert to fraction form
    2,786.13/4,179.33 = 1,142.91/x
  3. Step 3: Cross multiply
    2,786.13x = 4,179.33 × 1,142.91
  4. Step 4: Simplify right side
    2,786.13x = 4,776,598.05
  5. Step 5: Solve for x
    x = 4,776,598.05/2,786.13
  6. Step 6: Final answer
    x = 1,714.42

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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.