Home / 3,936.37-5,431.99-2,539.12

Finding the Fourth Proportional to 3,936.37, 5,431.99 and 2,539.12

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Solution

The fourth proportional to 3,936.37, 5,431.99 and 2,539.12 is: 3,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.37 : 5,431.99 = 2,539.12 : x
  2. Step 2: Convert to fraction form
    3,936.37/5,431.99 = 2,539.12/x
  3. Step 3: Cross multiply
    3,936.37x = 5,431.99 × 2,539.12
  4. Step 4: Simplify right side
    3,936.37x = 13,792,434.59
  5. Step 5: Solve for x
    x = 13,792,434.59/3,936.37
  6. Step 6: Final answer
    x = 3,503.85

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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.