Home / 3,779.21-5,661.51-1,832.78

Finding the Fourth Proportional to 3,779.21, 5,661.51 and 1,832.78

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Solution

The fourth proportional to 3,779.21, 5,661.51 and 1,832.78 is: 2,745.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.21 : 5,661.51 = 1,832.78 : x
  2. Step 2: Convert to fraction form
    3,779.21/5,661.51 = 1,832.78/x
  3. Step 3: Cross multiply
    3,779.21x = 5,661.51 × 1,832.78
  4. Step 4: Simplify right side
    3,779.21x = 10,376,273.99
  5. Step 5: Solve for x
    x = 10,376,273.99/3,779.21
  6. Step 6: Final answer
    x = 2,745.62

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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.