Home / 2,961.96-4,083.68-2,428.90

Finding the Fourth Proportional to 2,961.96, 4,083.68 and 2,428.90

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Solution

The fourth proportional to 2,961.96, 4,083.68 and 2,428.90 is: 3,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.96 : 4,083.68 = 2,428.90 : x
  2. Step 2: Convert to fraction form
    2,961.96/4,083.68 = 2,428.90/x
  3. Step 3: Cross multiply
    2,961.96x = 4,083.68 × 2,428.90
  4. Step 4: Simplify right side
    2,961.96x = 9,918,850.35
  5. Step 5: Solve for x
    x = 9,918,850.35/2,961.96
  6. Step 6: Final answer
    x = 3,348.75

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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.