Home / 3,654.12-5,481.25-1,188.93

Finding the Fourth Proportional to 3,654.12, 5,481.25 and 1,188.93

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Solution

The fourth proportional to 3,654.12, 5,481.25 and 1,188.93 is: 1,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.12 : 5,481.25 = 1,188.93 : x
  2. Step 2: Convert to fraction form
    3,654.12/5,481.25 = 1,188.93/x
  3. Step 3: Cross multiply
    3,654.12x = 5,481.25 × 1,188.93
  4. Step 4: Simplify right side
    3,654.12x = 6,516,819.59
  5. Step 5: Solve for x
    x = 6,516,819.59/3,654.12
  6. Step 6: Final answer
    x = 1,783.42

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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.