Home / 3,640.05-5,456.73-1,173.60

Finding the Fourth Proportional to 3,640.05, 5,456.73 and 1,173.60

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Solution

The fourth proportional to 3,640.05, 5,456.73 and 1,173.60 is: 1,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.05 : 5,456.73 = 1,173.60 : x
  2. Step 2: Convert to fraction form
    3,640.05/5,456.73 = 1,173.60/x
  3. Step 3: Cross multiply
    3,640.05x = 5,456.73 × 1,173.60
  4. Step 4: Simplify right side
    3,640.05x = 6,404,022.73
  5. Step 5: Solve for x
    x = 6,404,022.73/3,640.05
  6. Step 6: Final answer
    x = 1,759.32

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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.