Home / 2,205.57-3,306.23-818.53

Finding the Fourth Proportional to 2,205.57, 3,306.23 and 818.53

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Solution

The fourth proportional to 2,205.57, 3,306.23 and 818.53 is: 1,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.57 : 3,306.23 = 818.53 : x
  2. Step 2: Convert to fraction form
    2,205.57/3,306.23 = 818.53/x
  3. Step 3: Cross multiply
    2,205.57x = 3,306.23 × 818.53
  4. Step 4: Simplify right side
    2,205.57x = 2,706,248.44
  5. Step 5: Solve for x
    x = 2,706,248.44/2,205.57
  6. Step 6: Final answer
    x = 1,227.01

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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.