Home / 4,919.28-6,797.88-3,879.60

Finding the Fourth Proportional to 4,919.28, 6,797.88 and 3,879.60

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Solution

The fourth proportional to 4,919.28, 6,797.88 and 3,879.60 is: 5,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.28 : 6,797.88 = 3,879.60 : x
  2. Step 2: Convert to fraction form
    4,919.28/6,797.88 = 3,879.60/x
  3. Step 3: Cross multiply
    4,919.28x = 6,797.88 × 3,879.60
  4. Step 4: Simplify right side
    4,919.28x = 26,373,055.25
  5. Step 5: Solve for x
    x = 26,373,055.25/4,919.28
  6. Step 6: Final answer
    x = 5,361.16

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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.