Home / 4,121.22-6,181.56-1,930.44

Finding the Fourth Proportional to 4,121.22, 6,181.56 and 1,930.44

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Solution

The fourth proportional to 4,121.22, 6,181.56 and 1,930.44 is: 2,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.22 : 6,181.56 = 1,930.44 : x
  2. Step 2: Convert to fraction form
    4,121.22/6,181.56 = 1,930.44/x
  3. Step 3: Cross multiply
    4,121.22x = 6,181.56 × 1,930.44
  4. Step 4: Simplify right side
    4,121.22x = 11,933,130.69
  5. Step 5: Solve for x
    x = 11,933,130.69/4,121.22
  6. Step 6: Final answer
    x = 2,895.53

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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.