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Finding the Third Proportional to 3,112.59 and 4,680.66

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Solution

The third proportional to 3,112.59 and 4,680.66 is: 7,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.59 : 4,680.66 = 4,680.66 : x
  2. Step 2: Convert to fraction form
    3,112.59/4,680.66 = 4,680.66/x
  3. Step 3: Cross multiply
    3,112.59x = 4,680.66 × 4,680.66
  4. Step 4: Simplify right side
    3,112.59x = 21,908,542.93
  5. Step 5: Solve for x
    x = 21,908,542.93/3,112.59
  6. Step 6: Final answer
    x = 7,038.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.