Home / 2,267.26-3,128.82-1,272.64

Finding the Fourth Proportional to 2,267.26, 3,128.82 and 1,272.64

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Solution

The fourth proportional to 2,267.26, 3,128.82 and 1,272.64 is: 1,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.26 : 3,128.82 = 1,272.64 : x
  2. Step 2: Convert to fraction form
    2,267.26/3,128.82 = 1,272.64/x
  3. Step 3: Cross multiply
    2,267.26x = 3,128.82 × 1,272.64
  4. Step 4: Simplify right side
    2,267.26x = 3,981,861.48
  5. Step 5: Solve for x
    x = 3,981,861.48/2,267.26
  6. Step 6: Final answer
    x = 1,756.24

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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.