Home / 7,835.46-11,745.99-3,390.36

Finding the Fourth Proportional to 7,835.46, 11,745.99 and 3,390.36

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Solution

The fourth proportional to 7,835.46, 11,745.99 and 3,390.36 is: 5,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.46 : 11,745.99 = 3,390.36 : x
  2. Step 2: Convert to fraction form
    7,835.46/11,745.99 = 3,390.36/x
  3. Step 3: Cross multiply
    7,835.46x = 11,745.99 × 3,390.36
  4. Step 4: Simplify right side
    7,835.46x = 39,823,134.66
  5. Step 5: Solve for x
    x = 39,823,134.66/7,835.46
  6. Step 6: Final answer
    x = 5,082.42

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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.