Home / 3,780.20-5,669.66-2,681.22

Finding the Fourth Proportional to 3,780.20, 5,669.66 and 2,681.22

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Solution

The fourth proportional to 3,780.20, 5,669.66 and 2,681.22 is: 4,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.20 : 5,669.66 = 2,681.22 : x
  2. Step 2: Convert to fraction form
    3,780.20/5,669.66 = 2,681.22/x
  3. Step 3: Cross multiply
    3,780.20x = 5,669.66 × 2,681.22
  4. Step 4: Simplify right side
    3,780.20x = 15,201,592.38
  5. Step 5: Solve for x
    x = 15,201,592.38/3,780.20
  6. Step 6: Final answer
    x = 4,021.38

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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.