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Finding the Third Proportional to 1,955.81 and 4,219.13

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Solution

The third proportional to 1,955.81 and 4,219.13 is: 9,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.81 : 4,219.13 = 4,219.13 : x
  2. Step 2: Convert to fraction form
    1,955.81/4,219.13 = 4,219.13/x
  3. Step 3: Cross multiply
    1,955.81x = 4,219.13 × 4,219.13
  4. Step 4: Simplify right side
    1,955.81x = 17,801,015.77
  5. Step 5: Solve for x
    x = 17,801,015.77/1,955.81
  6. Step 6: Final answer
    x = 9,101.60

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.