Home / 2,334.14-3,221.12-1,286.20

Finding the Fourth Proportional to 2,334.14, 3,221.12 and 1,286.20

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Solution

The fourth proportional to 2,334.14, 3,221.12 and 1,286.20 is: 1,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.14 : 3,221.12 = 1,286.20 : x
  2. Step 2: Convert to fraction form
    2,334.14/3,221.12 = 1,286.20/x
  3. Step 3: Cross multiply
    2,334.14x = 3,221.12 × 1,286.20
  4. Step 4: Simplify right side
    2,334.14x = 4,142,982.01
  5. Step 5: Solve for x
    x = 4,142,982.01/2,334.14
  6. Step 6: Final answer
    x = 1,774.95

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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.