Home / 3,949.18-5,922.40-2,196.85

Finding the Fourth Proportional to 3,949.18, 5,922.40 and 2,196.85

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Solution

The fourth proportional to 3,949.18, 5,922.40 and 2,196.85 is: 3,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.18 : 5,922.40 = 2,196.85 : x
  2. Step 2: Convert to fraction form
    3,949.18/5,922.40 = 2,196.85/x
  3. Step 3: Cross multiply
    3,949.18x = 5,922.40 × 2,196.85
  4. Step 4: Simplify right side
    3,949.18x = 13,010,615.13
  5. Step 5: Solve for x
    x = 13,010,615.13/3,949.18
  6. Step 6: Final answer
    x = 3,294.51

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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.