Home / 3,380.16-5,072.82-2,209.86

Finding the Fourth Proportional to 3,380.16, 5,072.82 and 2,209.86

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Solution

The fourth proportional to 3,380.16, 5,072.82 and 2,209.86 is: 3,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.16 : 5,072.82 = 2,209.86 : x
  2. Step 2: Convert to fraction form
    3,380.16/5,072.82 = 2,209.86/x
  3. Step 3: Cross multiply
    3,380.16x = 5,072.82 × 2,209.86
  4. Step 4: Simplify right side
    3,380.16x = 11,210,222.01
  5. Step 5: Solve for x
    x = 11,210,222.01/3,380.16
  6. Step 6: Final answer
    x = 3,316.48

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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.