Home / 4,128.97-6,194.49-1,355.80

Finding the Fourth Proportional to 4,128.97, 6,194.49 and 1,355.80

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Solution

The fourth proportional to 4,128.97, 6,194.49 and 1,355.80 is: 2,034.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.97 : 6,194.49 = 1,355.80 : x
  2. Step 2: Convert to fraction form
    4,128.97/6,194.49 = 1,355.80/x
  3. Step 3: Cross multiply
    4,128.97x = 6,194.49 × 1,355.80
  4. Step 4: Simplify right side
    4,128.97x = 8,398,489.54
  5. Step 5: Solve for x
    x = 8,398,489.54/4,128.97
  6. Step 6: Final answer
    x = 2,034.04

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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.