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Finding the Third Proportional to 1,490.75 and 3,238

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Solution

The third proportional to 1,490.75 and 3,238 is: 7,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.75 : 3,238 = 3,238 : x
  2. Step 2: Convert to fraction form
    1,490.75/3,238 = 3,238/x
  3. Step 3: Cross multiply
    1,490.75x = 3,238 × 3,238
  4. Step 4: Simplify right side
    1,490.75x = 10,484,644
  5. Step 5: Solve for x
    x = 10,484,644/1,490.75
  6. Step 6: Final answer
    x = 7,033.13

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.