Home / 7,221.45-10,829.96-3,061.38

Finding the Fourth Proportional to 7,221.45, 10,829.96 and 3,061.38

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Solution

The fourth proportional to 7,221.45, 10,829.96 and 3,061.38 is: 4,591.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.45 : 10,829.96 = 3,061.38 : x
  2. Step 2: Convert to fraction form
    7,221.45/10,829.96 = 3,061.38/x
  3. Step 3: Cross multiply
    7,221.45x = 10,829.96 × 3,061.38
  4. Step 4: Simplify right side
    7,221.45x = 33,154,622.94
  5. Step 5: Solve for x
    x = 33,154,622.94/7,221.45
  6. Step 6: Final answer
    x = 4,591.13

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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.