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Finding the Fourth Proportional to 8,492.10, 12,738.15 and 2,649.30

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Solution

The fourth proportional to 8,492.10, 12,738.15 and 2,649.30 is: 3,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.10 : 12,738.15 = 2,649.30 : x
  2. Step 2: Convert to fraction form
    8,492.10/12,738.15 = 2,649.30/x
  3. Step 3: Cross multiply
    8,492.10x = 12,738.15 × 2,649.30
  4. Step 4: Simplify right side
    8,492.10x = 33,747,180.80
  5. Step 5: Solve for x
    x = 33,747,180.80/8,492.10
  6. Step 6: Final answer
    x = 3,973.95

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Similar ratio
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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.