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Finding the Third Proportional to 2,485.69 and 2,769.19

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Solution

The third proportional to 2,485.69 and 2,769.19 is: 3,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.69 : 2,769.19 = 2,769.19 : x
  2. Step 2: Convert to fraction form
    2,485.69/2,769.19 = 2,769.19/x
  3. Step 3: Cross multiply
    2,485.69x = 2,769.19 × 2,769.19
  4. Step 4: Simplify right side
    2,485.69x = 7,668,399.41
  5. Step 5: Solve for x
    x = 7,668,399.41/2,485.69
  6. Step 6: Final answer
    x = 3,085.02

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.