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Finding the Third Proportional to 3,655 and 7,894.50

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Solution

The third proportional to 3,655 and 7,894.50 is: 17,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655 : 7,894.50 = 7,894.50 : x
  2. Step 2: Convert to fraction form
    3,655/7,894.50 = 7,894.50/x
  3. Step 3: Cross multiply
    3,655x = 7,894.50 × 7,894.50
  4. Step 4: Simplify right side
    3,655x = 62,323,130.25
  5. Step 5: Solve for x
    x = 62,323,130.25/3,655
  6. Step 6: Final answer
    x = 17,051.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.