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Finding the Third Proportional to 4,489.88 and 6,856.88

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Solution

The third proportional to 4,489.88 and 6,856.88 is: 10,471.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489.88 : 6,856.88 = 6,856.88 : x
  2. Step 2: Convert to fraction form
    4,489.88/6,856.88 = 6,856.88/x
  3. Step 3: Cross multiply
    4,489.88x = 6,856.88 × 6,856.88
  4. Step 4: Simplify right side
    4,489.88x = 47,016,734.77
  5. Step 5: Solve for x
    x = 47,016,734.77/4,489.88
  6. Step 6: Final answer
    x = 10,471.72

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.