Home / 3,654.91-5,481.84-1,189.76

Finding the Fourth Proportional to 3,654.91, 5,481.84 and 1,189.76

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Solution

The fourth proportional to 3,654.91, 5,481.84 and 1,189.76 is: 1,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.91 : 5,481.84 = 1,189.76 : x
  2. Step 2: Convert to fraction form
    3,654.91/5,481.84 = 1,189.76/x
  3. Step 3: Cross multiply
    3,654.91x = 5,481.84 × 1,189.76
  4. Step 4: Simplify right side
    3,654.91x = 6,522,092.12
  5. Step 5: Solve for x
    x = 6,522,092.12/3,654.91
  6. Step 6: Final answer
    x = 1,784.48

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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.