Home / 3,930.88-5,894.40-2,199.04

Finding the Fourth Proportional to 3,930.88, 5,894.40 and 2,199.04

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Solution

The fourth proportional to 3,930.88, 5,894.40 and 2,199.04 is: 3,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.88 : 5,894.40 = 2,199.04 : x
  2. Step 2: Convert to fraction form
    3,930.88/5,894.40 = 2,199.04/x
  3. Step 3: Cross multiply
    3,930.88x = 5,894.40 × 2,199.04
  4. Step 4: Simplify right side
    3,930.88x = 12,962,021.38
  5. Step 5: Solve for x
    x = 12,962,021.38/3,930.88
  6. Step 6: Final answer
    x = 3,297.49

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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.