Home / 3,409.75-5,084.78-3,378.61

Finding the Fourth Proportional to 3,409.75, 5,084.78 and 3,378.61

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Solution

The fourth proportional to 3,409.75, 5,084.78 and 3,378.61 is: 5,038.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.75 : 5,084.78 = 3,378.61 : x
  2. Step 2: Convert to fraction form
    3,409.75/5,084.78 = 3,378.61/x
  3. Step 3: Cross multiply
    3,409.75x = 5,084.78 × 3,378.61
  4. Step 4: Simplify right side
    3,409.75x = 17,179,488.56
  5. Step 5: Solve for x
    x = 17,179,488.56/3,409.75
  6. Step 6: Final answer
    x = 5,038.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.