Home / 7,157.03-10,734.39-1,961.69

Finding the Fourth Proportional to 7,157.03, 10,734.39 and 1,961.69

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Solution

The fourth proportional to 7,157.03, 10,734.39 and 1,961.69 is: 2,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.03 : 10,734.39 = 1,961.69 : x
  2. Step 2: Convert to fraction form
    7,157.03/10,734.39 = 1,961.69/x
  3. Step 3: Cross multiply
    7,157.03x = 10,734.39 × 1,961.69
  4. Step 4: Simplify right side
    7,157.03x = 21,057,491.85
  5. Step 5: Solve for x
    x = 21,057,491.85/7,157.03
  6. Step 6: Final answer
    x = 2,942.21

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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.