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Finding the Third Proportional to 1,545.19 and 3,382.31

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Solution

The third proportional to 1,545.19 and 3,382.31 is: 7,403.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.19 : 3,382.31 = 3,382.31 : x
  2. Step 2: Convert to fraction form
    1,545.19/3,382.31 = 3,382.31/x
  3. Step 3: Cross multiply
    1,545.19x = 3,382.31 × 3,382.31
  4. Step 4: Simplify right side
    1,545.19x = 11,440,037.85
  5. Step 5: Solve for x
    x = 11,440,037.85/1,545.19
  6. Step 6: Final answer
    x = 7,403.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.