Home / 3,829.40-5,743.80-2,180.76

Finding the Fourth Proportional to 3,829.40, 5,743.80 and 2,180.76

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Solution

The fourth proportional to 3,829.40, 5,743.80 and 2,180.76 is: 3,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.40 : 5,743.80 = 2,180.76 : x
  2. Step 2: Convert to fraction form
    3,829.40/5,743.80 = 2,180.76/x
  3. Step 3: Cross multiply
    3,829.40x = 5,743.80 × 2,180.76
  4. Step 4: Simplify right side
    3,829.40x = 12,525,849.29
  5. Step 5: Solve for x
    x = 12,525,849.29/3,829.40
  6. Step 6: Final answer
    x = 3,270.97

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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.