Home / 3,418.81-4,716.90-2,091.15

Finding the Fourth Proportional to 3,418.81, 4,716.90 and 2,091.15

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Solution

The fourth proportional to 3,418.81, 4,716.90 and 2,091.15 is: 2,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.81 : 4,716.90 = 2,091.15 : x
  2. Step 2: Convert to fraction form
    3,418.81/4,716.90 = 2,091.15/x
  3. Step 3: Cross multiply
    3,418.81x = 4,716.90 × 2,091.15
  4. Step 4: Simplify right side
    3,418.81x = 9,863,745.44
  5. Step 5: Solve for x
    x = 9,863,745.44/3,418.81
  6. Step 6: Final answer
    x = 2,885.14

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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.