Home / 3,450.22-5,175.80-1,109.45

Finding the Fourth Proportional to 3,450.22, 5,175.80 and 1,109.45

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Solution

The fourth proportional to 3,450.22, 5,175.80 and 1,109.45 is: 1,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.22 : 5,175.80 = 1,109.45 : x
  2. Step 2: Convert to fraction form
    3,450.22/5,175.80 = 1,109.45/x
  3. Step 3: Cross multiply
    3,450.22x = 5,175.80 × 1,109.45
  4. Step 4: Simplify right side
    3,450.22x = 5,742,273.75
  5. Step 5: Solve for x
    x = 5,742,273.75/3,450.22
  6. Step 6: Final answer
    x = 1,664.32

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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.