Home / 4,139.50-5,723.31-3,955.90

Finding the Fourth Proportional to 4,139.50, 5,723.31 and 3,955.90

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Solution

The fourth proportional to 4,139.50, 5,723.31 and 3,955.90 is: 5,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.50 : 5,723.31 = 3,955.90 : x
  2. Step 2: Convert to fraction form
    4,139.50/5,723.31 = 3,955.90/x
  3. Step 3: Cross multiply
    4,139.50x = 5,723.31 × 3,955.90
  4. Step 4: Simplify right side
    4,139.50x = 22,640,842.03
  5. Step 5: Solve for x
    x = 22,640,842.03/4,139.50
  6. Step 6: Final answer
    x = 5,469.46

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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.