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Finding the Third Proportional to 4,856 and 7,700

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Solution

The third proportional to 4,856 and 7,700 is: 12,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,856 : 7,700 = 7,700 : x
  2. Step 2: Convert to fraction form
    4,856/7,700 = 7,700/x
  3. Step 3: Cross multiply
    4,856x = 7,700 × 7,700
  4. Step 4: Simplify right side
    4,856x = 59,290,000
  5. Step 5: Solve for x
    x = 59,290,000/4,856
  6. Step 6: Final answer
    x = 12,209.64

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.