Home / 3,481.63-5,211.15-2,557

Finding the Fourth Proportional to 3,481.63, 5,211.15 and 2,557

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Solution

The fourth proportional to 3,481.63, 5,211.15 and 2,557 is: 3,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.63 : 5,211.15 = 2,557 : x
  2. Step 2: Convert to fraction form
    3,481.63/5,211.15 = 2,557/x
  3. Step 3: Cross multiply
    3,481.63x = 5,211.15 × 2,557
  4. Step 4: Simplify right side
    3,481.63x = 13,324,910.55
  5. Step 5: Solve for x
    x = 13,324,910.55/3,481.63
  6. Step 6: Final answer
    x = 3,827.20

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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.