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Finding the Fourth Proportional to 3,379.05, 4,662.63 and 1,962.72

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Solution

The fourth proportional to 3,379.05, 4,662.63 and 1,962.72 is: 2,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.05 : 4,662.63 = 1,962.72 : x
  2. Step 2: Convert to fraction form
    3,379.05/4,662.63 = 1,962.72/x
  3. Step 3: Cross multiply
    3,379.05x = 4,662.63 × 1,962.72
  4. Step 4: Simplify right side
    3,379.05x = 9,151,437.15
  5. Step 5: Solve for x
    x = 9,151,437.15/3,379.05
  6. Step 6: Final answer
    x = 2,708.29

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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.