Home / 7,916.25-11,877.82-3,759.20

Finding the Fourth Proportional to 7,916.25, 11,877.82 and 3,759.20

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Solution

The fourth proportional to 7,916.25, 11,877.82 and 3,759.20 is: 5,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.25 : 11,877.82 = 3,759.20 : x
  2. Step 2: Convert to fraction form
    7,916.25/11,877.82 = 3,759.20/x
  3. Step 3: Cross multiply
    7,916.25x = 11,877.82 × 3,759.20
  4. Step 4: Simplify right side
    7,916.25x = 44,651,100.94
  5. Step 5: Solve for x
    x = 44,651,100.94/7,916.25
  6. Step 6: Final answer
    x = 5,640.44

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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.