Home / 3,481.61-5,220.87-1,631.24

Finding the Fourth Proportional to 3,481.61, 5,220.87 and 1,631.24

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Solution

The fourth proportional to 3,481.61, 5,220.87 and 1,631.24 is: 2,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.61 : 5,220.87 = 1,631.24 : x
  2. Step 2: Convert to fraction form
    3,481.61/5,220.87 = 1,631.24/x
  3. Step 3: Cross multiply
    3,481.61x = 5,220.87 × 1,631.24
  4. Step 4: Simplify right side
    3,481.61x = 8,516,465.87
  5. Step 5: Solve for x
    x = 8,516,465.87/3,481.61
  6. Step 6: Final answer
    x = 2,446.13

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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.