Home / 2,622.92-3,618.23-1,992.38

Finding the Fourth Proportional to 2,622.92, 3,618.23 and 1,992.38

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Solution

The fourth proportional to 2,622.92, 3,618.23 and 1,992.38 is: 2,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.92 : 3,618.23 = 1,992.38 : x
  2. Step 2: Convert to fraction form
    2,622.92/3,618.23 = 1,992.38/x
  3. Step 3: Cross multiply
    2,622.92x = 3,618.23 × 1,992.38
  4. Step 4: Simplify right side
    2,622.92x = 7,208,861.03
  5. Step 5: Solve for x
    x = 7,208,861.03/2,622.92
  6. Step 6: Final answer
    x = 2,748.42

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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.