Home / 2,221.27-3,332.27-1,125.19

Finding the Fourth Proportional to 2,221.27, 3,332.27 and 1,125.19

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Solution

The fourth proportional to 2,221.27, 3,332.27 and 1,125.19 is: 1,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.27 : 3,332.27 = 1,125.19 : x
  2. Step 2: Convert to fraction form
    2,221.27/3,332.27 = 1,125.19/x
  3. Step 3: Cross multiply
    2,221.27x = 3,332.27 × 1,125.19
  4. Step 4: Simplify right side
    2,221.27x = 3,749,436.88
  5. Step 5: Solve for x
    x = 3,749,436.88/2,221.27
  6. Step 6: Final answer
    x = 1,687.97

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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.