Home / 3,255.12-4,879.72-1,174.64

Finding the Fourth Proportional to 3,255.12, 4,879.72 and 1,174.64

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Solution

The fourth proportional to 3,255.12, 4,879.72 and 1,174.64 is: 1,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.12 : 4,879.72 = 1,174.64 : x
  2. Step 2: Convert to fraction form
    3,255.12/4,879.72 = 1,174.64/x
  3. Step 3: Cross multiply
    3,255.12x = 4,879.72 × 1,174.64
  4. Step 4: Simplify right side
    3,255.12x = 5,731,914.30
  5. Step 5: Solve for x
    x = 5,731,914.30/3,255.12
  6. Step 6: Final answer
    x = 1,760.89

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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.