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Finding the Fourth Proportional to 3,330.10, 4,992.72 and 1,379.62

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Solution

The fourth proportional to 3,330.10, 4,992.72 and 1,379.62 is: 2,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.10 : 4,992.72 = 1,379.62 : x
  2. Step 2: Convert to fraction form
    3,330.10/4,992.72 = 1,379.62/x
  3. Step 3: Cross multiply
    3,330.10x = 4,992.72 × 1,379.62
  4. Step 4: Simplify right side
    3,330.10x = 6,888,056.37
  5. Step 5: Solve for x
    x = 6,888,056.37/3,330.10
  6. Step 6: Final answer
    x = 2,068.42

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