Home / 8,110.90-12,166.35-2,917.30

Finding the Fourth Proportional to 8,110.90, 12,166.35 and 2,917.30

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Solution

The fourth proportional to 8,110.90, 12,166.35 and 2,917.30 is: 4,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.90 : 12,166.35 = 2,917.30 : x
  2. Step 2: Convert to fraction form
    8,110.90/12,166.35 = 2,917.30/x
  3. Step 3: Cross multiply
    8,110.90x = 12,166.35 × 2,917.30
  4. Step 4: Simplify right side
    8,110.90x = 35,492,892.86
  5. Step 5: Solve for x
    x = 35,492,892.86/8,110.90
  6. Step 6: Final answer
    x = 4,375.95

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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.