Home / 2,846.25-3,928.77-1,903.68

Finding the Fourth Proportional to 2,846.25, 3,928.77 and 1,903.68

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Solution

The fourth proportional to 2,846.25, 3,928.77 and 1,903.68 is: 2,627.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.25 : 3,928.77 = 1,903.68 : x
  2. Step 2: Convert to fraction form
    2,846.25/3,928.77 = 1,903.68/x
  3. Step 3: Cross multiply
    2,846.25x = 3,928.77 × 1,903.68
  4. Step 4: Simplify right side
    2,846.25x = 7,479,120.87
  5. Step 5: Solve for x
    x = 7,479,120.87/2,846.25
  6. Step 6: Final answer
    x = 2,627.71

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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.