Home / 5,414.94-8,122.05-2,128.59

Finding the Fourth Proportional to 5,414.94, 8,122.05 and 2,128.59

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Solution

The fourth proportional to 5,414.94, 8,122.05 and 2,128.59 is: 3,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.94 : 8,122.05 = 2,128.59 : x
  2. Step 2: Convert to fraction form
    5,414.94/8,122.05 = 2,128.59/x
  3. Step 3: Cross multiply
    5,414.94x = 8,122.05 × 2,128.59
  4. Step 4: Simplify right side
    5,414.94x = 17,288,514.41
  5. Step 5: Solve for x
    x = 17,288,514.41/5,414.94
  6. Step 6: Final answer
    x = 3,192.74

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1.5x scale

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.