Home / 3,540.24-4,883.12-2,122.96

Finding the Fourth Proportional to 3,540.24, 4,883.12 and 2,122.96

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Solution

The fourth proportional to 3,540.24, 4,883.12 and 2,122.96 is: 2,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.24 : 4,883.12 = 2,122.96 : x
  2. Step 2: Convert to fraction form
    3,540.24/4,883.12 = 2,122.96/x
  3. Step 3: Cross multiply
    3,540.24x = 4,883.12 × 2,122.96
  4. Step 4: Simplify right side
    3,540.24x = 10,366,668.44
  5. Step 5: Solve for x
    x = 10,366,668.44/3,540.24
  6. Step 6: Final answer
    x = 2,928.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.