Home / 3,654.55-5,481.88-1,189.38

Finding the Fourth Proportional to 3,654.55, 5,481.88 and 1,189.38

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Solution

The fourth proportional to 3,654.55, 5,481.88 and 1,189.38 is: 1,784.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.55 : 5,481.88 = 1,189.38 : x
  2. Step 2: Convert to fraction form
    3,654.55/5,481.88 = 1,189.38/x
  3. Step 3: Cross multiply
    3,654.55x = 5,481.88 × 1,189.38
  4. Step 4: Simplify right side
    3,654.55x = 6,520,032.49
  5. Step 5: Solve for x
    x = 6,520,032.49/3,654.55
  6. Step 6: Final answer
    x = 1,784.09

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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.