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Finding the Fourth Proportional to 6,888.78, 10,333.86 and 2,207.62

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Solution

The fourth proportional to 6,888.78, 10,333.86 and 2,207.62 is: 3,311.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.78 : 10,333.86 = 2,207.62 : x
  2. Step 2: Convert to fraction form
    6,888.78/10,333.86 = 2,207.62/x
  3. Step 3: Cross multiply
    6,888.78x = 10,333.86 × 2,207.62
  4. Step 4: Simplify right side
    6,888.78x = 22,813,236.01
  5. Step 5: Solve for x
    x = 22,813,236.01/6,888.78
  6. Step 6: Final answer
    x = 3,311.65

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1.5x scale

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.