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Finding the Third Proportional to 3,015 and 4,618.50

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Solution

The third proportional to 3,015 and 4,618.50 is: 7,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015 : 4,618.50 = 4,618.50 : x
  2. Step 2: Convert to fraction form
    3,015/4,618.50 = 4,618.50/x
  3. Step 3: Cross multiply
    3,015x = 4,618.50 × 4,618.50
  4. Step 4: Simplify right side
    3,015x = 21,330,542.25
  5. Step 5: Solve for x
    x = 21,330,542.25/3,015
  6. Step 6: Final answer
    x = 7,074.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.