Home / 3,173.72-4,379.82-1,776.44

Finding the Fourth Proportional to 3,173.72, 4,379.82 and 1,776.44

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Solution

The fourth proportional to 3,173.72, 4,379.82 and 1,776.44 is: 2,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.72 : 4,379.82 = 1,776.44 : x
  2. Step 2: Convert to fraction form
    3,173.72/4,379.82 = 1,776.44/x
  3. Step 3: Cross multiply
    3,173.72x = 4,379.82 × 1,776.44
  4. Step 4: Simplify right side
    3,173.72x = 7,780,487.44
  5. Step 5: Solve for x
    x = 7,780,487.44/3,173.72
  6. Step 6: Final answer
    x = 2,451.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.