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Finding the Fourth Proportional to 5,910.08, 8,857.58 and 3,138.08

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Solution

The fourth proportional to 5,910.08, 8,857.58 and 3,138.08 is: 4,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.08 : 8,857.58 = 3,138.08 : x
  2. Step 2: Convert to fraction form
    5,910.08/8,857.58 = 3,138.08/x
  3. Step 3: Cross multiply
    5,910.08x = 8,857.58 × 3,138.08
  4. Step 4: Simplify right side
    5,910.08x = 27,795,734.67
  5. Step 5: Solve for x
    x = 27,795,734.67/5,910.08
  6. Step 6: Final answer
    x = 4,703.11

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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.