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Finding the Third Proportional to 2,945.50 and 6,445

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Solution

The third proportional to 2,945.50 and 6,445 is: 14,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.50 : 6,445 = 6,445 : x
  2. Step 2: Convert to fraction form
    2,945.50/6,445 = 6,445/x
  3. Step 3: Cross multiply
    2,945.50x = 6,445 × 6,445
  4. Step 4: Simplify right side
    2,945.50x = 41,538,025
  5. Step 5: Solve for x
    x = 41,538,025/2,945.50
  6. Step 6: Final answer
    x = 14,102.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.