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Finding the Third Proportional to 4,210.75 and 8,664.75

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Solution

The third proportional to 4,210.75 and 8,664.75 is: 17,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.75 : 8,664.75 = 8,664.75 : x
  2. Step 2: Convert to fraction form
    4,210.75/8,664.75 = 8,664.75/x
  3. Step 3: Cross multiply
    4,210.75x = 8,664.75 × 8,664.75
  4. Step 4: Simplify right side
    4,210.75x = 75,077,892.56
  5. Step 5: Solve for x
    x = 75,077,892.56/4,210.75
  6. Step 6: Final answer
    x = 17,830.05

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.