Home / 2,858.34-3,946.38-2,198.64

Finding the Fourth Proportional to 2,858.34, 3,946.38 and 2,198.64

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Solution

The fourth proportional to 2,858.34, 3,946.38 and 2,198.64 is: 3,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.34 : 3,946.38 = 2,198.64 : x
  2. Step 2: Convert to fraction form
    2,858.34/3,946.38 = 2,198.64/x
  3. Step 3: Cross multiply
    2,858.34x = 3,946.38 × 2,198.64
  4. Step 4: Simplify right side
    2,858.34x = 8,676,668.92
  5. Step 5: Solve for x
    x = 8,676,668.92/2,858.34
  6. Step 6: Final answer
    x = 3,035.56

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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.