Home / 3,842.91-5,767.23-2,857.98

Finding the Fourth Proportional to 3,842.91, 5,767.23 and 2,857.98

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Solution

The fourth proportional to 3,842.91, 5,767.23 and 2,857.98 is: 4,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.91 : 5,767.23 = 2,857.98 : x
  2. Step 2: Convert to fraction form
    3,842.91/5,767.23 = 2,857.98/x
  3. Step 3: Cross multiply
    3,842.91x = 5,767.23 × 2,857.98
  4. Step 4: Simplify right side
    3,842.91x = 16,482,628.00
  5. Step 5: Solve for x
    x = 16,482,628.00/3,842.91
  6. Step 6: Final answer
    x = 4,289.10

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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.