Home / 3,286.13-4,534.86-2,107.20

Finding the Fourth Proportional to 3,286.13, 4,534.86 and 2,107.20

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Solution

The fourth proportional to 3,286.13, 4,534.86 and 2,107.20 is: 2,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.13 : 4,534.86 = 2,107.20 : x
  2. Step 2: Convert to fraction form
    3,286.13/4,534.86 = 2,107.20/x
  3. Step 3: Cross multiply
    3,286.13x = 4,534.86 × 2,107.20
  4. Step 4: Simplify right side
    3,286.13x = 9,555,856.99
  5. Step 5: Solve for x
    x = 9,555,856.99/3,286.13
  6. Step 6: Final answer
    x = 2,907.94

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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.