Home / 3,481.53-5,218.61-1,631.09

Finding the Fourth Proportional to 3,481.53, 5,218.61 and 1,631.09

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Solution

The fourth proportional to 3,481.53, 5,218.61 and 1,631.09 is: 2,444.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.53 : 5,218.61 = 1,631.09 : x
  2. Step 2: Convert to fraction form
    3,481.53/5,218.61 = 1,631.09/x
  3. Step 3: Cross multiply
    3,481.53x = 5,218.61 × 1,631.09
  4. Step 4: Simplify right side
    3,481.53x = 8,511,988.34
  5. Step 5: Solve for x
    x = 8,511,988.34/3,481.53
  6. Step 6: Final answer
    x = 2,444.90

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1.5x scale

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.