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Finding the Third Proportional to 3,207.75 and 4,790.25

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Solution

The third proportional to 3,207.75 and 4,790.25 is: 7,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.75 : 4,790.25 = 4,790.25 : x
  2. Step 2: Convert to fraction form
    3,207.75/4,790.25 = 4,790.25/x
  3. Step 3: Cross multiply
    3,207.75x = 4,790.25 × 4,790.25
  4. Step 4: Simplify right side
    3,207.75x = 22,946,495.06
  5. Step 5: Solve for x
    x = 22,946,495.06/3,207.75
  6. Step 6: Final answer
    x = 7,153.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.