Home / 3,315.53-4,974.41-2,209.38

Finding the Fourth Proportional to 3,315.53, 4,974.41 and 2,209.38

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Solution

The fourth proportional to 3,315.53, 4,974.41 and 2,209.38 is: 3,314.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.53 : 4,974.41 = 2,209.38 : x
  2. Step 2: Convert to fraction form
    3,315.53/4,974.41 = 2,209.38/x
  3. Step 3: Cross multiply
    3,315.53x = 4,974.41 × 2,209.38
  4. Step 4: Simplify right side
    3,315.53x = 10,990,348.84
  5. Step 5: Solve for x
    x = 10,990,348.84/3,315.53
  6. Step 6: Final answer
    x = 3,314.81

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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.