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Finding the Fourth Proportional to 6,661.16, 9,994.62 and 3,579.56

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Solution

The fourth proportional to 6,661.16, 9,994.62 and 3,579.56 is: 5,370.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.16 : 9,994.62 = 3,579.56 : x
  2. Step 2: Convert to fraction form
    6,661.16/9,994.62 = 3,579.56/x
  3. Step 3: Cross multiply
    6,661.16x = 9,994.62 × 3,579.56
  4. Step 4: Simplify right side
    6,661.16x = 35,776,341.97
  5. Step 5: Solve for x
    x = 35,776,341.97/6,661.16
  6. Step 6: Final answer
    x = 5,370.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.