Home / 3,228.75-4,455.79-1,903.59

Finding the Fourth Proportional to 3,228.75, 4,455.79 and 1,903.59

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Solution

The fourth proportional to 3,228.75, 4,455.79 and 1,903.59 is: 2,627.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.75 : 4,455.79 = 1,903.59 : x
  2. Step 2: Convert to fraction form
    3,228.75/4,455.79 = 1,903.59/x
  3. Step 3: Cross multiply
    3,228.75x = 4,455.79 × 1,903.59
  4. Step 4: Simplify right side
    3,228.75x = 8,481,992.53
  5. Step 5: Solve for x
    x = 8,481,992.53/3,228.75
  6. Step 6: Final answer
    x = 2,627.02

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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.