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Finding the Third Proportional to 1,630.13 and 3,130.31

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Solution

The third proportional to 1,630.13 and 3,130.31 is: 6,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.13 : 3,130.31 = 3,130.31 : x
  2. Step 2: Convert to fraction form
    1,630.13/3,130.31 = 3,130.31/x
  3. Step 3: Cross multiply
    1,630.13x = 3,130.31 × 3,130.31
  4. Step 4: Simplify right side
    1,630.13x = 9,798,856.35
  5. Step 5: Solve for x
    x = 9,798,856.35/1,630.13
  6. Step 6: Final answer
    x = 6,011.11

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.