Home / 3,846.04-5,771.58-2,115.88

Finding the Fourth Proportional to 3,846.04, 5,771.58 and 2,115.88

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Solution

The fourth proportional to 3,846.04, 5,771.58 and 2,115.88 is: 3,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.04 : 5,771.58 = 2,115.88 : x
  2. Step 2: Convert to fraction form
    3,846.04/5,771.58 = 2,115.88/x
  3. Step 3: Cross multiply
    3,846.04x = 5,771.58 × 2,115.88
  4. Step 4: Simplify right side
    3,846.04x = 12,211,970.69
  5. Step 5: Solve for x
    x = 12,211,970.69/3,846.04
  6. Step 6: Final answer
    x = 3,175.21

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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.