Home / 7,545.40-11,321.52-3,163.84

Finding the Fourth Proportional to 7,545.40, 11,321.52 and 3,163.84

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Solution

The fourth proportional to 7,545.40, 11,321.52 and 3,163.84 is: 4,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.40 : 11,321.52 = 3,163.84 : x
  2. Step 2: Convert to fraction form
    7,545.40/11,321.52 = 3,163.84/x
  3. Step 3: Cross multiply
    7,545.40x = 11,321.52 × 3,163.84
  4. Step 4: Simplify right side
    7,545.40x = 35,819,477.84
  5. Step 5: Solve for x
    x = 35,819,477.84/7,545.40
  6. Step 6: Final answer
    x = 4,747.19

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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.