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Finding the Third Proportional to 1,491.19 and 2,211.19

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Solution

The third proportional to 1,491.19 and 2,211.19 is: 3,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.19 : 2,211.19 = 2,211.19 : x
  2. Step 2: Convert to fraction form
    1,491.19/2,211.19 = 2,211.19/x
  3. Step 3: Cross multiply
    1,491.19x = 2,211.19 × 2,211.19
  4. Step 4: Simplify right side
    1,491.19x = 4,889,350.16
  5. Step 5: Solve for x
    x = 4,889,350.16/1,491.19
  6. Step 6: Final answer
    x = 3,278.83

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.