Home / 3,938.80-5,904.60-1,747.96

Finding the Fourth Proportional to 3,938.80, 5,904.60 and 1,747.96

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Solution

The fourth proportional to 3,938.80, 5,904.60 and 1,747.96 is: 2,620.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.80 : 5,904.60 = 1,747.96 : x
  2. Step 2: Convert to fraction form
    3,938.80/5,904.60 = 1,747.96/x
  3. Step 3: Cross multiply
    3,938.80x = 5,904.60 × 1,747.96
  4. Step 4: Simplify right side
    3,938.80x = 10,321,004.62
  5. Step 5: Solve for x
    x = 10,321,004.62/3,938.80
  6. Step 6: Final answer
    x = 2,620.34

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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.