Home / 2,209.62-3,294.11-2,105.94

Finding the Fourth Proportional to 2,209.62, 3,294.11 and 2,105.94

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Solution

The fourth proportional to 2,209.62, 3,294.11 and 2,105.94 is: 3,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.62 : 3,294.11 = 2,105.94 : x
  2. Step 2: Convert to fraction form
    2,209.62/3,294.11 = 2,105.94/x
  3. Step 3: Cross multiply
    2,209.62x = 3,294.11 × 2,105.94
  4. Step 4: Simplify right side
    2,209.62x = 6,937,187.48
  5. Step 5: Solve for x
    x = 6,937,187.48/2,209.62
  6. Step 6: Final answer
    x = 3,139.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.