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Finding the Third Proportional to 915.13 and 1,784.88

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Solution

The third proportional to 915.13 and 1,784.88 is: 3,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.13 : 1,784.88 = 1,784.88 : x
  2. Step 2: Convert to fraction form
    915.13/1,784.88 = 1,784.88/x
  3. Step 3: Cross multiply
    915.13x = 1,784.88 × 1,784.88
  4. Step 4: Simplify right side
    915.13x = 3,185,778.77
  5. Step 5: Solve for x
    x = 3,185,778.77/915.13
  6. Step 6: Final answer
    x = 3,481.25

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.