Home / 3,879.34-5,351.85-2,307.44

Finding the Fourth Proportional to 3,879.34, 5,351.85 and 2,307.44

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Solution

The fourth proportional to 3,879.34, 5,351.85 and 2,307.44 is: 3,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.34 : 5,351.85 = 2,307.44 : x
  2. Step 2: Convert to fraction form
    3,879.34/5,351.85 = 2,307.44/x
  3. Step 3: Cross multiply
    3,879.34x = 5,351.85 × 2,307.44
  4. Step 4: Simplify right side
    3,879.34x = 12,349,049.55
  5. Step 5: Solve for x
    x = 12,349,049.55/3,879.34
  6. Step 6: Final answer
    x = 3,183.28

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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.