Home / 2,942.60-4,412.90-1,382.12

Finding the Fourth Proportional to 2,942.60, 4,412.90 and 1,382.12

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Solution

The fourth proportional to 2,942.60, 4,412.90 and 1,382.12 is: 2,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.60 : 4,412.90 = 1,382.12 : x
  2. Step 2: Convert to fraction form
    2,942.60/4,412.90 = 1,382.12/x
  3. Step 3: Cross multiply
    2,942.60x = 4,412.90 × 1,382.12
  4. Step 4: Simplify right side
    2,942.60x = 6,099,157.35
  5. Step 5: Solve for x
    x = 6,099,157.35/2,942.60
  6. Step 6: Final answer
    x = 2,072.71

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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.