Home / 3,830.80-5,745.48-1,881.76

Finding the Fourth Proportional to 3,830.80, 5,745.48 and 1,881.76

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Solution

The fourth proportional to 3,830.80, 5,745.48 and 1,881.76 is: 2,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.80 : 5,745.48 = 1,881.76 : x
  2. Step 2: Convert to fraction form
    3,830.80/5,745.48 = 1,881.76/x
  3. Step 3: Cross multiply
    3,830.80x = 5,745.48 × 1,881.76
  4. Step 4: Simplify right side
    3,830.80x = 10,811,614.44
  5. Step 5: Solve for x
    x = 10,811,614.44/3,830.80
  6. Step 6: Final answer
    x = 2,822.29

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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.