Home / 3,944.80-5,439.84-2,618.56

Finding the Fourth Proportional to 3,944.80, 5,439.84 and 2,618.56

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Solution

The fourth proportional to 3,944.80, 5,439.84 and 2,618.56 is: 3,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.80 : 5,439.84 = 2,618.56 : x
  2. Step 2: Convert to fraction form
    3,944.80/5,439.84 = 2,618.56/x
  3. Step 3: Cross multiply
    3,944.80x = 5,439.84 × 2,618.56
  4. Step 4: Simplify right side
    3,944.80x = 14,244,547.43
  5. Step 5: Solve for x
    x = 14,244,547.43/3,944.80
  6. Step 6: Final answer
    x = 3,610.97

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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.