Home / 2,755.92-4,128.67-2,136.59

Finding the Fourth Proportional to 2,755.92, 4,128.67 and 2,136.59

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Solution

The fourth proportional to 2,755.92, 4,128.67 and 2,136.59 is: 3,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.92 : 4,128.67 = 2,136.59 : x
  2. Step 2: Convert to fraction form
    2,755.92/4,128.67 = 2,136.59/x
  3. Step 3: Cross multiply
    2,755.92x = 4,128.67 × 2,136.59
  4. Step 4: Simplify right side
    2,755.92x = 8,821,275.04
  5. Step 5: Solve for x
    x = 8,821,275.04/2,755.92
  6. Step 6: Final answer
    x = 3,200.85

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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.