Home / 2,747.32-4,121.70-1,208.68

Finding the Fourth Proportional to 2,747.32, 4,121.70 and 1,208.68

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Solution

The fourth proportional to 2,747.32, 4,121.70 and 1,208.68 is: 1,813.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.32 : 4,121.70 = 1,208.68 : x
  2. Step 2: Convert to fraction form
    2,747.32/4,121.70 = 1,208.68/x
  3. Step 3: Cross multiply
    2,747.32x = 4,121.70 × 1,208.68
  4. Step 4: Simplify right side
    2,747.32x = 4,981,816.36
  5. Step 5: Solve for x
    x = 4,981,816.36/2,747.32
  6. Step 6: Final answer
    x = 1,813.34

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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.