Home / 3,991.83-5,504.17-3,361.40

Finding the Fourth Proportional to 3,991.83, 5,504.17 and 3,361.40

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Solution

The fourth proportional to 3,991.83, 5,504.17 and 3,361.40 is: 4,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.83 : 5,504.17 = 3,361.40 : x
  2. Step 2: Convert to fraction form
    3,991.83/5,504.17 = 3,361.40/x
  3. Step 3: Cross multiply
    3,991.83x = 5,504.17 × 3,361.40
  4. Step 4: Simplify right side
    3,991.83x = 18,501,708.06
  5. Step 5: Solve for x
    x = 18,501,708.06/3,991.83
  6. Step 6: Final answer
    x = 4,634.89

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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.