Home / 3,828.22-5,742.26-2,181.25

Finding the Fourth Proportional to 3,828.22, 5,742.26 and 2,181.25

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Solution

The fourth proportional to 3,828.22, 5,742.26 and 2,181.25 is: 3,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.22 : 5,742.26 = 2,181.25 : x
  2. Step 2: Convert to fraction form
    3,828.22/5,742.26 = 2,181.25/x
  3. Step 3: Cross multiply
    3,828.22x = 5,742.26 × 2,181.25
  4. Step 4: Simplify right side
    3,828.22x = 12,525,309.08
  5. Step 5: Solve for x
    x = 12,525,309.08/3,828.22
  6. Step 6: Final answer
    x = 3,271.84

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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.