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Finding the Third Proportional to 1,976.06 and 4,389.19

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Solution

The third proportional to 1,976.06 and 4,389.19 is: 9,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.06 : 4,389.19 = 4,389.19 : x
  2. Step 2: Convert to fraction form
    1,976.06/4,389.19 = 4,389.19/x
  3. Step 3: Cross multiply
    1,976.06x = 4,389.19 × 4,389.19
  4. Step 4: Simplify right side
    1,976.06x = 19,264,966.91
  5. Step 5: Solve for x
    x = 19,264,966.91/1,976.06
  6. Step 6: Final answer
    x = 9,749.17

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.