Home / 3,633.96-5,455.72-2,155.90

Finding the Fourth Proportional to 3,633.96, 5,455.72 and 2,155.90

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Solution

The fourth proportional to 3,633.96, 5,455.72 and 2,155.90 is: 3,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.96 : 5,455.72 = 2,155.90 : x
  2. Step 2: Convert to fraction form
    3,633.96/5,455.72 = 2,155.90/x
  3. Step 3: Cross multiply
    3,633.96x = 5,455.72 × 2,155.90
  4. Step 4: Simplify right side
    3,633.96x = 11,761,986.75
  5. Step 5: Solve for x
    x = 11,761,986.75/3,633.96
  6. Step 6: Final answer
    x = 3,236.69

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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.