Home / 2,850.84-3,930.66-2,064.60

Finding the Fourth Proportional to 2,850.84, 3,930.66 and 2,064.60

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Solution

The fourth proportional to 2,850.84, 3,930.66 and 2,064.60 is: 2,846.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.84 : 3,930.66 = 2,064.60 : x
  2. Step 2: Convert to fraction form
    2,850.84/3,930.66 = 2,064.60/x
  3. Step 3: Cross multiply
    2,850.84x = 3,930.66 × 2,064.60
  4. Step 4: Simplify right side
    2,850.84x = 8,115,240.64
  5. Step 5: Solve for x
    x = 8,115,240.64/2,850.84
  6. Step 6: Final answer
    x = 2,846.61

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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.