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Finding the Third Proportional to 979 and 2,247.50

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Solution

The third proportional to 979 and 2,247.50 is: 5,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    979 : 2,247.50 = 2,247.50 : x
  2. Step 2: Convert to fraction form
    979/2,247.50 = 2,247.50/x
  3. Step 3: Cross multiply
    979x = 2,247.50 × 2,247.50
  4. Step 4: Simplify right side
    979x = 5,051,256.25
  5. Step 5: Solve for x
    x = 5,051,256.25/979
  6. Step 6: Final answer
    x = 5,159.61

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.