Home / 3,205.68-4,419-2,505.84

Finding the Fourth Proportional to 3,205.68, 4,419 and 2,505.84

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Solution

The fourth proportional to 3,205.68, 4,419 and 2,505.84 is: 3,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.68 : 4,419 = 2,505.84 : x
  2. Step 2: Convert to fraction form
    3,205.68/4,419 = 2,505.84/x
  3. Step 3: Cross multiply
    3,205.68x = 4,419 × 2,505.84
  4. Step 4: Simplify right side
    3,205.68x = 11,073,306.96
  5. Step 5: Solve for x
    x = 11,073,306.96/3,205.68
  6. Step 6: Final answer
    x = 3,454.28

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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.