Home / 2,122.26-3,169.98-1,794.21

Finding the Fourth Proportional to 2,122.26, 3,169.98 and 1,794.21

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Solution

The fourth proportional to 2,122.26, 3,169.98 and 1,794.21 is: 2,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.26 : 3,169.98 = 1,794.21 : x
  2. Step 2: Convert to fraction form
    2,122.26/3,169.98 = 1,794.21/x
  3. Step 3: Cross multiply
    2,122.26x = 3,169.98 × 1,794.21
  4. Step 4: Simplify right side
    2,122.26x = 5,687,609.82
  5. Step 5: Solve for x
    x = 5,687,609.82/2,122.26
  6. Step 6: Final answer
    x = 2,679.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.