Home / 5,108.46-7,049.48-3,122.34

Finding the Fourth Proportional to 5,108.46, 7,049.48 and 3,122.34

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Solution

The fourth proportional to 5,108.46, 7,049.48 and 3,122.34 is: 4,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.46 : 7,049.48 = 3,122.34 : x
  2. Step 2: Convert to fraction form
    5,108.46/7,049.48 = 3,122.34/x
  3. Step 3: Cross multiply
    5,108.46x = 7,049.48 × 3,122.34
  4. Step 4: Simplify right side
    5,108.46x = 22,010,857.77
  5. Step 5: Solve for x
    x = 22,010,857.77/5,108.46
  6. Step 6: Final answer
    x = 4,308.71

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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.