Home / 2,267.24-3,128.74-1,272.60

Finding the Fourth Proportional to 2,267.24, 3,128.74 and 1,272.60

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Solution

The fourth proportional to 2,267.24, 3,128.74 and 1,272.60 is: 1,756.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.24 : 3,128.74 = 1,272.60 : x
  2. Step 2: Convert to fraction form
    2,267.24/3,128.74 = 1,272.60/x
  3. Step 3: Cross multiply
    2,267.24x = 3,128.74 × 1,272.60
  4. Step 4: Simplify right side
    2,267.24x = 3,981,634.52
  5. Step 5: Solve for x
    x = 3,981,634.52/2,267.24
  6. Step 6: Final answer
    x = 1,756.16

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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.