Home / 3,839.24-5,758.84-2,540.40

Finding the Fourth Proportional to 3,839.24, 5,758.84 and 2,540.40

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Solution

The fourth proportional to 3,839.24, 5,758.84 and 2,540.40 is: 3,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.24 : 5,758.84 = 2,540.40 : x
  2. Step 2: Convert to fraction form
    3,839.24/5,758.84 = 2,540.40/x
  3. Step 3: Cross multiply
    3,839.24x = 5,758.84 × 2,540.40
  4. Step 4: Simplify right side
    3,839.24x = 14,629,757.14
  5. Step 5: Solve for x
    x = 14,629,757.14/3,839.24
  6. Step 6: Final answer
    x = 3,810.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.