Home / 5,151.42-7,723.78-3,391.09

Finding the Fourth Proportional to 5,151.42, 7,723.78 and 3,391.09

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Solution

The fourth proportional to 5,151.42, 7,723.78 and 3,391.09 is: 5,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.42 : 7,723.78 = 3,391.09 : x
  2. Step 2: Convert to fraction form
    5,151.42/7,723.78 = 3,391.09/x
  3. Step 3: Cross multiply
    5,151.42x = 7,723.78 × 3,391.09
  4. Step 4: Simplify right side
    5,151.42x = 26,192,005.33
  5. Step 5: Solve for x
    x = 26,192,005.33/5,151.42
  6. Step 6: Final answer
    x = 5,084.42

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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.