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Finding the Fourth Proportional to 6,910, 10,369.68 and 3,012.16

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Solution

The fourth proportional to 6,910, 10,369.68 and 3,012.16 is: 4,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910 : 10,369.68 = 3,012.16 : x
  2. Step 2: Convert to fraction form
    6,910/10,369.68 = 3,012.16/x
  3. Step 3: Cross multiply
    6,910x = 10,369.68 × 3,012.16
  4. Step 4: Simplify right side
    6,910x = 31,235,135.31
  5. Step 5: Solve for x
    x = 31,235,135.31/6,910
  6. Step 6: Final answer
    x = 4,520.28

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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.