Home / 2,839.10-3,920.94-2,529.88

Finding the Fourth Proportional to 2,839.10, 3,920.94 and 2,529.88

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Solution

The fourth proportional to 2,839.10, 3,920.94 and 2,529.88 is: 3,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.10 : 3,920.94 = 2,529.88 : x
  2. Step 2: Convert to fraction form
    2,839.10/3,920.94 = 2,529.88/x
  3. Step 3: Cross multiply
    2,839.10x = 3,920.94 × 2,529.88
  4. Step 4: Simplify right side
    2,839.10x = 9,919,497.88
  5. Step 5: Solve for x
    x = 9,919,497.88/2,839.10
  6. Step 6: Final answer
    x = 3,493.89

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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.