Home / 2,221.54-3,329.51-1,126.18

Finding the Fourth Proportional to 2,221.54, 3,329.51 and 1,126.18

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Solution

The fourth proportional to 2,221.54, 3,329.51 and 1,126.18 is: 1,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.54 : 3,329.51 = 1,126.18 : x
  2. Step 2: Convert to fraction form
    2,221.54/3,329.51 = 1,126.18/x
  3. Step 3: Cross multiply
    2,221.54x = 3,329.51 × 1,126.18
  4. Step 4: Simplify right side
    2,221.54x = 3,749,627.57
  5. Step 5: Solve for x
    x = 3,749,627.57/2,221.54
  6. Step 6: Final answer
    x = 1,687.85

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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.