Home / 3,450.36-5,174.37-1,109.79

Finding the Fourth Proportional to 3,450.36, 5,174.37 and 1,109.79

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Solution

The fourth proportional to 3,450.36, 5,174.37 and 1,109.79 is: 1,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.36 : 5,174.37 = 1,109.79 : x
  2. Step 2: Convert to fraction form
    3,450.36/5,174.37 = 1,109.79/x
  3. Step 3: Cross multiply
    3,450.36x = 5,174.37 × 1,109.79
  4. Step 4: Simplify right side
    3,450.36x = 5,742,464.08
  5. Step 5: Solve for x
    x = 5,742,464.08/3,450.36
  6. Step 6: Final answer
    x = 1,664.31

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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.