Home / 3,951.40-5,928.78-1,485.94

Finding the Fourth Proportional to 3,951.40, 5,928.78 and 1,485.94

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Solution

The fourth proportional to 3,951.40, 5,928.78 and 1,485.94 is: 2,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.40 : 5,928.78 = 1,485.94 : x
  2. Step 2: Convert to fraction form
    3,951.40/5,928.78 = 1,485.94/x
  3. Step 3: Cross multiply
    3,951.40x = 5,928.78 × 1,485.94
  4. Step 4: Simplify right side
    3,951.40x = 8,809,811.35
  5. Step 5: Solve for x
    x = 8,809,811.35/3,951.40
  6. Step 6: Final answer
    x = 2,229.54

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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.