Home / 3,281.32-4,921.61-1,172.49

Finding the Fourth Proportional to 3,281.32, 4,921.61 and 1,172.49

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Solution

The fourth proportional to 3,281.32, 4,921.61 and 1,172.49 is: 1,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.32 : 4,921.61 = 1,172.49 : x
  2. Step 2: Convert to fraction form
    3,281.32/4,921.61 = 1,172.49/x
  3. Step 3: Cross multiply
    3,281.32x = 4,921.61 × 1,172.49
  4. Step 4: Simplify right side
    3,281.32x = 5,770,544.66
  5. Step 5: Solve for x
    x = 5,770,544.66/3,281.32
  6. Step 6: Final answer
    x = 1,758.61

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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.