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Finding the Fourth Proportional to 6,878.66, 10,310.93 and 2,716.98

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Solution

The fourth proportional to 6,878.66, 10,310.93 and 2,716.98 is: 4,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.66 : 10,310.93 = 2,716.98 : x
  2. Step 2: Convert to fraction form
    6,878.66/10,310.93 = 2,716.98/x
  3. Step 3: Cross multiply
    6,878.66x = 10,310.93 × 2,716.98
  4. Step 4: Simplify right side
    6,878.66x = 28,014,590.59
  5. Step 5: Solve for x
    x = 28,014,590.59/6,878.66
  6. Step 6: Final answer
    x = 4,072.68

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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.