Home / 4,890.45-6,745.30-3,378.54

Finding the Fourth Proportional to 4,890.45, 6,745.30 and 3,378.54

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Solution

The fourth proportional to 4,890.45, 6,745.30 and 3,378.54 is: 4,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.45 : 6,745.30 = 3,378.54 : x
  2. Step 2: Convert to fraction form
    4,890.45/6,745.30 = 3,378.54/x
  3. Step 3: Cross multiply
    4,890.45x = 6,745.30 × 3,378.54
  4. Step 4: Simplify right side
    4,890.45x = 22,789,235.30
  5. Step 5: Solve for x
    x = 22,789,235.30/4,890.45
  6. Step 6: Final answer
    x = 4,659.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.