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Finding the Third Proportional to 3,015.19 and 4,715.81

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Solution

The third proportional to 3,015.19 and 4,715.81 is: 7,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.19 : 4,715.81 = 4,715.81 : x
  2. Step 2: Convert to fraction form
    3,015.19/4,715.81 = 4,715.81/x
  3. Step 3: Cross multiply
    3,015.19x = 4,715.81 × 4,715.81
  4. Step 4: Simplify right side
    3,015.19x = 22,238,887.54
  5. Step 5: Solve for x
    x = 22,238,887.54/3,015.19
  6. Step 6: Final answer
    x = 7,375.62

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.