Home / 5,211.62-7,192.09-2,853.82

Finding the Fourth Proportional to 5,211.62, 7,192.09 and 2,853.82

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Solution

The fourth proportional to 5,211.62, 7,192.09 and 2,853.82 is: 3,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.62 : 7,192.09 = 2,853.82 : x
  2. Step 2: Convert to fraction form
    5,211.62/7,192.09 = 2,853.82/x
  3. Step 3: Cross multiply
    5,211.62x = 7,192.09 × 2,853.82
  4. Step 4: Simplify right side
    5,211.62x = 20,524,894.32
  5. Step 5: Solve for x
    x = 20,524,894.32/5,211.62
  6. Step 6: Final answer
    x = 3,938.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.