Home / 7,209.62-10,814.36-3,921.96

Finding the Fourth Proportional to 7,209.62, 10,814.36 and 3,921.96

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Solution

The fourth proportional to 7,209.62, 10,814.36 and 3,921.96 is: 5,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.62 : 10,814.36 = 3,921.96 : x
  2. Step 2: Convert to fraction form
    7,209.62/10,814.36 = 3,921.96/x
  3. Step 3: Cross multiply
    7,209.62x = 10,814.36 × 3,921.96
  4. Step 4: Simplify right side
    7,209.62x = 42,413,467.74
  5. Step 5: Solve for x
    x = 42,413,467.74/7,209.62
  6. Step 6: Final answer
    x = 5,882.90

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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.