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Finding the Fourth Proportional to 2,660.97, 3,992.82 and 2,015.67

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Solution

The fourth proportional to 2,660.97, 3,992.82 and 2,015.67 is: 3,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.97 : 3,992.82 = 2,015.67 : x
  2. Step 2: Convert to fraction form
    2,660.97/3,992.82 = 2,015.67/x
  3. Step 3: Cross multiply
    2,660.97x = 3,992.82 × 2,015.67
  4. Step 4: Simplify right side
    2,660.97x = 8,048,207.49
  5. Step 5: Solve for x
    x = 8,048,207.49/2,660.97
  6. Step 6: Final answer
    x = 3,024.54

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1.5x scale

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.