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Finding the Fourth Proportional to 5,735.58, 7,915.12 and 3,217.79

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Solution

The fourth proportional to 5,735.58, 7,915.12 and 3,217.79 is: 4,440.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,735.58 : 7,915.12 = 3,217.79 : x
  2. Step 2: Convert to fraction form
    5,735.58/7,915.12 = 3,217.79/x
  3. Step 3: Cross multiply
    5,735.58x = 7,915.12 × 3,217.79
  4. Step 4: Simplify right side
    5,735.58x = 25,469,205.73
  5. Step 5: Solve for x
    x = 25,469,205.73/5,735.58
  6. Step 6: Final answer
    x = 4,440.57

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1.5x scale

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.