Home / 3,168.36-4,749.66-1,318.32

Finding the Fourth Proportional to 3,168.36, 4,749.66 and 1,318.32

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Solution

The fourth proportional to 3,168.36, 4,749.66 and 1,318.32 is: 1,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.36 : 4,749.66 = 1,318.32 : x
  2. Step 2: Convert to fraction form
    3,168.36/4,749.66 = 1,318.32/x
  3. Step 3: Cross multiply
    3,168.36x = 4,749.66 × 1,318.32
  4. Step 4: Simplify right side
    3,168.36x = 6,261,571.77
  5. Step 5: Solve for x
    x = 6,261,571.77/3,168.36
  6. Step 6: Final answer
    x = 1,976.28

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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.