Home / 2,334.50-3,221.62-1,286.54

Finding the Fourth Proportional to 2,334.50, 3,221.62 and 1,286.54

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Solution

The fourth proportional to 2,334.50, 3,221.62 and 1,286.54 is: 1,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.50 : 3,221.62 = 1,286.54 : x
  2. Step 2: Convert to fraction form
    2,334.50/3,221.62 = 1,286.54/x
  3. Step 3: Cross multiply
    2,334.50x = 3,221.62 × 1,286.54
  4. Step 4: Simplify right side
    2,334.50x = 4,144,742.99
  5. Step 5: Solve for x
    x = 4,144,742.99/2,334.50
  6. Step 6: Final answer
    x = 1,775.43

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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.