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Finding the Third Proportional to 613.41 and 1,315.41

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Solution

The third proportional to 613.41 and 1,315.41 is: 2,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.41 : 1,315.41 = 1,315.41 : x
  2. Step 2: Convert to fraction form
    613.41/1,315.41 = 1,315.41/x
  3. Step 3: Cross multiply
    613.41x = 1,315.41 × 1,315.41
  4. Step 4: Simplify right side
    613.41x = 1,730,293.60
  5. Step 5: Solve for x
    x = 1,730,293.60/613.41
  6. Step 6: Final answer
    x = 2,820.80

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.