Home / 2,861.96-3,948.60-1,683.44

Finding the Fourth Proportional to 2,861.96, 3,948.60 and 1,683.44

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Solution

The fourth proportional to 2,861.96, 3,948.60 and 1,683.44 is: 2,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.96 : 3,948.60 = 1,683.44 : x
  2. Step 2: Convert to fraction form
    2,861.96/3,948.60 = 1,683.44/x
  3. Step 3: Cross multiply
    2,861.96x = 3,948.60 × 1,683.44
  4. Step 4: Simplify right side
    2,861.96x = 6,647,231.18
  5. Step 5: Solve for x
    x = 6,647,231.18/2,861.96
  6. Step 6: Final answer
    x = 2,322.61

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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.