Home / 3,654.31-5,481.78-1,574.38

Finding the Fourth Proportional to 3,654.31, 5,481.78 and 1,574.38

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Solution

The fourth proportional to 3,654.31, 5,481.78 and 1,574.38 is: 2,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.31 : 5,481.78 = 1,574.38 : x
  2. Step 2: Convert to fraction form
    3,654.31/5,481.78 = 1,574.38/x
  3. Step 3: Cross multiply
    3,654.31x = 5,481.78 × 1,574.38
  4. Step 4: Simplify right side
    3,654.31x = 8,630,404.80
  5. Step 5: Solve for x
    x = 8,630,404.80/3,654.31
  6. Step 6: Final answer
    x = 2,361.71

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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.