Home / 2,758.92-4,128.65-2,104.44

Finding the Fourth Proportional to 2,758.92, 4,128.65 and 2,104.44

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Solution

The fourth proportional to 2,758.92, 4,128.65 and 2,104.44 is: 3,149.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.92 : 4,128.65 = 2,104.44 : x
  2. Step 2: Convert to fraction form
    2,758.92/4,128.65 = 2,104.44/x
  3. Step 3: Cross multiply
    2,758.92x = 4,128.65 × 2,104.44
  4. Step 4: Simplify right side
    2,758.92x = 8,688,496.21
  5. Step 5: Solve for x
    x = 8,688,496.21/2,758.92
  6. Step 6: Final answer
    x = 3,149.24

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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.