Home / 3,949.48-5,446.20-3,391.80

Finding the Fourth Proportional to 3,949.48, 5,446.20 and 3,391.80

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Solution

The fourth proportional to 3,949.48, 5,446.20 and 3,391.80 is: 4,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.48 : 5,446.20 = 3,391.80 : x
  2. Step 2: Convert to fraction form
    3,949.48/5,446.20 = 3,391.80/x
  3. Step 3: Cross multiply
    3,949.48x = 5,446.20 × 3,391.80
  4. Step 4: Simplify right side
    3,949.48x = 18,472,393.93
  5. Step 5: Solve for x
    x = 18,472,393.93/3,949.48
  6. Step 6: Final answer
    x = 4,677.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.