Home / 3,828.16-5,736.75-2,181.30

Finding the Fourth Proportional to 3,828.16, 5,736.75 and 2,181.30

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Solution

The fourth proportional to 3,828.16, 5,736.75 and 2,181.30 is: 3,268.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.16 : 5,736.75 = 2,181.30 : x
  2. Step 2: Convert to fraction form
    3,828.16/5,736.75 = 2,181.30/x
  3. Step 3: Cross multiply
    3,828.16x = 5,736.75 × 2,181.30
  4. Step 4: Simplify right side
    3,828.16x = 12,513,572.78
  5. Step 5: Solve for x
    x = 12,513,572.78/3,828.16
  6. Step 6: Final answer
    x = 3,268.83

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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.