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Finding the Fourth Proportional to 6,605, 9,114.94 and 3,620.84

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Solution

The fourth proportional to 6,605, 9,114.94 and 3,620.84 is: 4,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605 : 9,114.94 = 3,620.84 : x
  2. Step 2: Convert to fraction form
    6,605/9,114.94 = 3,620.84/x
  3. Step 3: Cross multiply
    6,605x = 9,114.94 × 3,620.84
  4. Step 4: Simplify right side
    6,605x = 33,003,739.35
  5. Step 5: Solve for x
    x = 33,003,739.35/6,605
  6. Step 6: Final answer
    x = 4,996.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.