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Finding the Fourth Proportional to 8,492.92, 12,735.42 and 3,228.91

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Solution

The fourth proportional to 8,492.92, 12,735.42 and 3,228.91 is: 4,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.92 : 12,735.42 = 3,228.91 : x
  2. Step 2: Convert to fraction form
    8,492.92/12,735.42 = 3,228.91/x
  3. Step 3: Cross multiply
    8,492.92x = 12,735.42 × 3,228.91
  4. Step 4: Simplify right side
    8,492.92x = 41,121,524.99
  5. Step 5: Solve for x
    x = 41,121,524.99/8,492.92
  6. Step 6: Final answer
    x = 4,841.86

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1.5x scale

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.