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Finding the Third Proportional to 4,840 and 9,792

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Solution

The third proportional to 4,840 and 9,792 is: 19,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,840 : 9,792 = 9,792 : x
  2. Step 2: Convert to fraction form
    4,840/9,792 = 9,792/x
  3. Step 3: Cross multiply
    4,840x = 9,792 × 9,792
  4. Step 4: Simplify right side
    4,840x = 95,883,264
  5. Step 5: Solve for x
    x = 95,883,264/4,840
  6. Step 6: Final answer
    x = 19,810.59

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.