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Finding the Third Proportional to 853.88 and 1,248.05

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Solution

The third proportional to 853.88 and 1,248.05 is: 1,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    853.88 : 1,248.05 = 1,248.05 : x
  2. Step 2: Convert to fraction form
    853.88/1,248.05 = 1,248.05/x
  3. Step 3: Cross multiply
    853.88x = 1,248.05 × 1,248.05
  4. Step 4: Simplify right side
    853.88x = 1,557,621.00
  5. Step 5: Solve for x
    x = 1,557,621.00/853.88
  6. Step 6: Final answer
    x = 1,824.18

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.