Home / 5,163.30-7,122.12-3,817.52

Finding the Fourth Proportional to 5,163.30, 7,122.12 and 3,817.52

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Solution

The fourth proportional to 5,163.30, 7,122.12 and 3,817.52 is: 5,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.30 : 7,122.12 = 3,817.52 : x
  2. Step 2: Convert to fraction form
    5,163.30/7,122.12 = 3,817.52/x
  3. Step 3: Cross multiply
    5,163.30x = 7,122.12 × 3,817.52
  4. Step 4: Simplify right side
    5,163.30x = 27,188,835.54
  5. Step 5: Solve for x
    x = 27,188,835.54/5,163.30
  6. Step 6: Final answer
    x = 5,265.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.