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Finding the Fourth Proportional to 6,367.15, 8,792.27 and 3,981.21

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Solution

The fourth proportional to 6,367.15, 8,792.27 and 3,981.21 is: 5,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.15 : 8,792.27 = 3,981.21 : x
  2. Step 2: Convert to fraction form
    6,367.15/8,792.27 = 3,981.21/x
  3. Step 3: Cross multiply
    6,367.15x = 8,792.27 × 3,981.21
  4. Step 4: Simplify right side
    6,367.15x = 35,003,873.25
  5. Step 5: Solve for x
    x = 35,003,873.25/6,367.15
  6. Step 6: Final answer
    x = 5,497.57

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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.