Home / 3,241.75-4,474.73-1,915.37

Finding the Fourth Proportional to 3,241.75, 4,474.73 and 1,915.37

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Solution

The fourth proportional to 3,241.75, 4,474.73 and 1,915.37 is: 2,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.75 : 4,474.73 = 1,915.37 : x
  2. Step 2: Convert to fraction form
    3,241.75/4,474.73 = 1,915.37/x
  3. Step 3: Cross multiply
    3,241.75x = 4,474.73 × 1,915.37
  4. Step 4: Simplify right side
    3,241.75x = 8,570,772.69
  5. Step 5: Solve for x
    x = 8,570,772.69/3,241.75
  6. Step 6: Final answer
    x = 2,643.87

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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.