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Finding the Third Proportional to 3,515.43 and 5,345.76

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Solution

The third proportional to 3,515.43 and 5,345.76 is: 8,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.43 : 5,345.76 = 5,345.76 : x
  2. Step 2: Convert to fraction form
    3,515.43/5,345.76 = 5,345.76/x
  3. Step 3: Cross multiply
    3,515.43x = 5,345.76 × 5,345.76
  4. Step 4: Simplify right side
    3,515.43x = 28,577,178.79
  5. Step 5: Solve for x
    x = 28,577,178.79/3,515.43
  6. Step 6: Final answer
    x = 8,129.07

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.