Home / 2,791.91-4,187.58-1,404.68

Finding the Fourth Proportional to 2,791.91, 4,187.58 and 1,404.68

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Solution

The fourth proportional to 2,791.91, 4,187.58 and 1,404.68 is: 2,106.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.91 : 4,187.58 = 1,404.68 : x
  2. Step 2: Convert to fraction form
    2,791.91/4,187.58 = 1,404.68/x
  3. Step 3: Cross multiply
    2,791.91x = 4,187.58 × 1,404.68
  4. Step 4: Simplify right side
    2,791.91x = 5,882,220.34
  5. Step 5: Solve for x
    x = 5,882,220.34/2,791.91
  6. Step 6: Final answer
    x = 2,106.88

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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.