Home / 4,181.82-5,769.59-3,121.12

Finding the Fourth Proportional to 4,181.82, 5,769.59 and 3,121.12

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Solution

The fourth proportional to 4,181.82, 5,769.59 and 3,121.12 is: 4,306.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,181.82 : 5,769.59 = 3,121.12 : x
  2. Step 2: Convert to fraction form
    4,181.82/5,769.59 = 3,121.12/x
  3. Step 3: Cross multiply
    4,181.82x = 5,769.59 × 3,121.12
  4. Step 4: Simplify right side
    4,181.82x = 18,007,582.74
  5. Step 5: Solve for x
    x = 18,007,582.74/4,181.82
  6. Step 6: Final answer
    x = 4,306.16

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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.