Home / 2,858.12-3,944.46-1,738.79

Finding the Fourth Proportional to 2,858.12, 3,944.46 and 1,738.79

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Solution

The fourth proportional to 2,858.12, 3,944.46 and 1,738.79 is: 2,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.12 : 3,944.46 = 1,738.79 : x
  2. Step 2: Convert to fraction form
    2,858.12/3,944.46 = 1,738.79/x
  3. Step 3: Cross multiply
    2,858.12x = 3,944.46 × 1,738.79
  4. Step 4: Simplify right side
    2,858.12x = 6,858,587.60
  5. Step 5: Solve for x
    x = 6,858,587.60/2,858.12
  6. Step 6: Final answer
    x = 2,399.68

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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.