Home / 5,239.62-7,859.33-2,119.59

Finding the Fourth Proportional to 5,239.62, 7,859.33 and 2,119.59

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Solution

The fourth proportional to 5,239.62, 7,859.33 and 2,119.59 is: 3,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.62 : 7,859.33 = 2,119.59 : x
  2. Step 2: Convert to fraction form
    5,239.62/7,859.33 = 2,119.59/x
  3. Step 3: Cross multiply
    5,239.62x = 7,859.33 × 2,119.59
  4. Step 4: Simplify right side
    5,239.62x = 16,658,546.68
  5. Step 5: Solve for x
    x = 16,658,546.68/5,239.62
  6. Step 6: Final answer
    x = 3,179.34

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1.5x scale

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.