Home / 1,608.20-2,223.45-1,236.41

Finding the Fourth Proportional to 1,608.20, 2,223.45 and 1,236.41

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Solution

The fourth proportional to 1,608.20, 2,223.45 and 1,236.41 is: 1,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.20 : 2,223.45 = 1,236.41 : x
  2. Step 2: Convert to fraction form
    1,608.20/2,223.45 = 1,236.41/x
  3. Step 3: Cross multiply
    1,608.20x = 2,223.45 × 1,236.41
  4. Step 4: Simplify right side
    1,608.20x = 2,749,105.54
  5. Step 5: Solve for x
    x = 2,749,105.54/1,608.20
  6. Step 6: Final answer
    x = 1,709.43

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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.