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Finding the Third Proportional to 1,280 and 2,246

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Solution

The third proportional to 1,280 and 2,246 is: 3,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280 : 2,246 = 2,246 : x
  2. Step 2: Convert to fraction form
    1,280/2,246 = 2,246/x
  3. Step 3: Cross multiply
    1,280x = 2,246 × 2,246
  4. Step 4: Simplify right side
    1,280x = 5,044,516
  5. Step 5: Solve for x
    x = 5,044,516/1,280
  6. Step 6: Final answer
    x = 3,941.03

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.