Home / 2,824.20-4,232.18-2,668.40

Finding the Fourth Proportional to 2,824.20, 4,232.18 and 2,668.40

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Solution

The fourth proportional to 2,824.20, 4,232.18 and 2,668.40 is: 3,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.20 : 4,232.18 = 2,668.40 : x
  2. Step 2: Convert to fraction form
    2,824.20/4,232.18 = 2,668.40/x
  3. Step 3: Cross multiply
    2,824.20x = 4,232.18 × 2,668.40
  4. Step 4: Simplify right side
    2,824.20x = 11,293,149.11
  5. Step 5: Solve for x
    x = 11,293,149.11/2,824.20
  6. Step 6: Final answer
    x = 3,998.71

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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.