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Finding the Fourth Proportional to 3,915.70, 5,845.07 and 3,626.59

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Solution

The fourth proportional to 3,915.70, 5,845.07 and 3,626.59 is: 5,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.70 : 5,845.07 = 3,626.59 : x
  2. Step 2: Convert to fraction form
    3,915.70/5,845.07 = 3,626.59/x
  3. Step 3: Cross multiply
    3,915.70x = 5,845.07 × 3,626.59
  4. Step 4: Simplify right side
    3,915.70x = 21,197,672.41
  5. Step 5: Solve for x
    x = 21,197,672.41/3,915.70
  6. Step 6: Final answer
    x = 5,413.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.