Home / 3,944.68-5,466.67-3,889

Finding the Fourth Proportional to 3,944.68, 5,466.67 and 3,889

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Solution

The fourth proportional to 3,944.68, 5,466.67 and 3,889 is: 5,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.68 : 5,466.67 = 3,889 : x
  2. Step 2: Convert to fraction form
    3,944.68/5,466.67 = 3,889/x
  3. Step 3: Cross multiply
    3,944.68x = 5,466.67 × 3,889
  4. Step 4: Simplify right side
    3,944.68x = 21,259,879.63
  5. Step 5: Solve for x
    x = 21,259,879.63/3,944.68
  6. Step 6: Final answer
    x = 5,389.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.