Home / 2,820.10-4,212.85-2,033.39

Finding the Fourth Proportional to 2,820.10, 4,212.85 and 2,033.39

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Solution

The fourth proportional to 2,820.10, 4,212.85 and 2,033.39 is: 3,037.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.10 : 4,212.85 = 2,033.39 : x
  2. Step 2: Convert to fraction form
    2,820.10/4,212.85 = 2,033.39/x
  3. Step 3: Cross multiply
    2,820.10x = 4,212.85 × 2,033.39
  4. Step 4: Simplify right side
    2,820.10x = 8,566,348.54
  5. Step 5: Solve for x
    x = 8,566,348.54/2,820.10
  6. Step 6: Final answer
    x = 3,037.61

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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.