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Finding the Third Proportional to 4,120.31 and 9,722.81

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Solution

The third proportional to 4,120.31 and 9,722.81 is: 22,943.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.31 : 9,722.81 = 9,722.81 : x
  2. Step 2: Convert to fraction form
    4,120.31/9,722.81 = 9,722.81/x
  3. Step 3: Cross multiply
    4,120.31x = 9,722.81 × 9,722.81
  4. Step 4: Simplify right side
    4,120.31x = 94,533,082.91
  5. Step 5: Solve for x
    x = 94,533,082.91/4,120.31
  6. Step 6: Final answer
    x = 22,943.18

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.