Home / 3,876.22-5,815.68-1,683.82

Finding the Fourth Proportional to 3,876.22, 5,815.68 and 1,683.82

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Solution

The fourth proportional to 3,876.22, 5,815.68 and 1,683.82 is: 2,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.22 : 5,815.68 = 1,683.82 : x
  2. Step 2: Convert to fraction form
    3,876.22/5,815.68 = 1,683.82/x
  3. Step 3: Cross multiply
    3,876.22x = 5,815.68 × 1,683.82
  4. Step 4: Simplify right side
    3,876.22x = 9,792,558.30
  5. Step 5: Solve for x
    x = 9,792,558.30/3,876.22
  6. Step 6: Final answer
    x = 2,526.32

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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.