Home / 3,846.75-5,308.52-2,190.75

Finding the Fourth Proportional to 3,846.75, 5,308.52 and 2,190.75

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Solution

The fourth proportional to 3,846.75, 5,308.52 and 2,190.75 is: 3,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.75 : 5,308.52 = 2,190.75 : x
  2. Step 2: Convert to fraction form
    3,846.75/5,308.52 = 2,190.75/x
  3. Step 3: Cross multiply
    3,846.75x = 5,308.52 × 2,190.75
  4. Step 4: Simplify right side
    3,846.75x = 11,629,629.24
  5. Step 5: Solve for x
    x = 11,629,629.24/3,846.75
  6. Step 6: Final answer
    x = 3,023.24

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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.