Home / 8,054.20-12,079.88-2,209.40

Finding the Fourth Proportional to 8,054.20, 12,079.88 and 2,209.40

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Solution

The fourth proportional to 8,054.20, 12,079.88 and 2,209.40 is: 3,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,054.20 : 12,079.88 = 2,209.40 : x
  2. Step 2: Convert to fraction form
    8,054.20/12,079.88 = 2,209.40/x
  3. Step 3: Cross multiply
    8,054.20x = 12,079.88 × 2,209.40
  4. Step 4: Simplify right side
    8,054.20x = 26,689,286.87
  5. Step 5: Solve for x
    x = 26,689,286.87/8,054.20
  6. Step 6: Final answer
    x = 3,313.71

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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.