Home / 3,487.96-5,231.94-1,181.08

Finding the Fourth Proportional to 3,487.96, 5,231.94 and 1,181.08

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Solution

The fourth proportional to 3,487.96, 5,231.94 and 1,181.08 is: 1,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.96 : 5,231.94 = 1,181.08 : x
  2. Step 2: Convert to fraction form
    3,487.96/5,231.94 = 1,181.08/x
  3. Step 3: Cross multiply
    3,487.96x = 5,231.94 × 1,181.08
  4. Step 4: Simplify right side
    3,487.96x = 6,179,339.70
  5. Step 5: Solve for x
    x = 6,179,339.70/3,487.96
  6. Step 6: Final answer
    x = 1,771.62

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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.