Home / 2,267.27-3,128.60-1,272.66

Finding the Fourth Proportional to 2,267.27, 3,128.60 and 1,272.66

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Solution

The fourth proportional to 2,267.27, 3,128.60 and 1,272.66 is: 1,756.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.27 : 3,128.60 = 1,272.66 : x
  2. Step 2: Convert to fraction form
    2,267.27/3,128.60 = 1,272.66/x
  3. Step 3: Cross multiply
    2,267.27x = 3,128.60 × 1,272.66
  4. Step 4: Simplify right side
    2,267.27x = 3,981,649.54
  5. Step 5: Solve for x
    x = 3,981,649.54/2,267.27
  6. Step 6: Final answer
    x = 1,756.14

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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.