Home / 4,917.20-7,380.60-2,454.80

Finding the Fourth Proportional to 4,917.20, 7,380.60 and 2,454.80

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Solution

The fourth proportional to 4,917.20, 7,380.60 and 2,454.80 is: 3,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.20 : 7,380.60 = 2,454.80 : x
  2. Step 2: Convert to fraction form
    4,917.20/7,380.60 = 2,454.80/x
  3. Step 3: Cross multiply
    4,917.20x = 7,380.60 × 2,454.80
  4. Step 4: Simplify right side
    4,917.20x = 18,117,896.88
  5. Step 5: Solve for x
    x = 18,117,896.88/4,917.20
  6. Step 6: Final answer
    x = 3,684.60

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1.5x scale

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.