Home / 3,620.44-5,431.26-1,155.06

Finding the Fourth Proportional to 3,620.44, 5,431.26 and 1,155.06

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Solution

The fourth proportional to 3,620.44, 5,431.26 and 1,155.06 is: 1,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.44 : 5,431.26 = 1,155.06 : x
  2. Step 2: Convert to fraction form
    3,620.44/5,431.26 = 1,155.06/x
  3. Step 3: Cross multiply
    3,620.44x = 5,431.26 × 1,155.06
  4. Step 4: Simplify right side
    3,620.44x = 6,273,431.18
  5. Step 5: Solve for x
    x = 6,273,431.18/3,620.44
  6. Step 6: Final answer
    x = 1,732.78

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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.