Home / 6,121.24-9,181.08-1,961.68

Finding the Fourth Proportional to 6,121.24, 9,181.08 and 1,961.68

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Solution

The fourth proportional to 6,121.24, 9,181.08 and 1,961.68 is: 2,942.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.24 : 9,181.08 = 1,961.68 : x
  2. Step 2: Convert to fraction form
    6,121.24/9,181.08 = 1,961.68/x
  3. Step 3: Cross multiply
    6,121.24x = 9,181.08 × 1,961.68
  4. Step 4: Simplify right side
    6,121.24x = 18,010,341.01
  5. Step 5: Solve for x
    x = 18,010,341.01/6,121.24
  6. Step 6: Final answer
    x = 2,942.27

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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.