Home / 2,824.20-4,240.35-2,135.70

Finding the Fourth Proportional to 2,824.20, 4,240.35 and 2,135.70

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Solution

The fourth proportional to 2,824.20, 4,240.35 and 2,135.70 is: 3,206.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.20 : 4,240.35 = 2,135.70 : x
  2. Step 2: Convert to fraction form
    2,824.20/4,240.35 = 2,135.70/x
  3. Step 3: Cross multiply
    2,824.20x = 4,240.35 × 2,135.70
  4. Step 4: Simplify right side
    2,824.20x = 9,056,115.50
  5. Step 5: Solve for x
    x = 9,056,115.50/2,824.20
  6. Step 6: Final answer
    x = 3,206.61

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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.