Home / 7,828.29-11,745.33-3,669.66

Finding the Fourth Proportional to 7,828.29, 11,745.33 and 3,669.66

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Solution

The fourth proportional to 7,828.29, 11,745.33 and 3,669.66 is: 5,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.29 : 11,745.33 = 3,669.66 : x
  2. Step 2: Convert to fraction form
    7,828.29/11,745.33 = 3,669.66/x
  3. Step 3: Cross multiply
    7,828.29x = 11,745.33 × 3,669.66
  4. Step 4: Simplify right side
    7,828.29x = 43,101,367.69
  5. Step 5: Solve for x
    x = 43,101,367.69/7,828.29
  6. Step 6: Final answer
    x = 5,505.85

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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.