Home / 3,654.20-5,478.60-1,896.68

Finding the Fourth Proportional to 3,654.20, 5,478.60 and 1,896.68

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Solution

The fourth proportional to 3,654.20, 5,478.60 and 1,896.68 is: 2,843.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.20 : 5,478.60 = 1,896.68 : x
  2. Step 2: Convert to fraction form
    3,654.20/5,478.60 = 1,896.68/x
  3. Step 3: Cross multiply
    3,654.20x = 5,478.60 × 1,896.68
  4. Step 4: Simplify right side
    3,654.20x = 10,391,151.05
  5. Step 5: Solve for x
    x = 10,391,151.05/3,654.20
  6. Step 6: Final answer
    x = 2,843.62

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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.