Home / 3,912.03-5,392.58-2,790.99

Finding the Fourth Proportional to 3,912.03, 5,392.58 and 2,790.99

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Solution

The fourth proportional to 3,912.03, 5,392.58 and 2,790.99 is: 3,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.03 : 5,392.58 = 2,790.99 : x
  2. Step 2: Convert to fraction form
    3,912.03/5,392.58 = 2,790.99/x
  3. Step 3: Cross multiply
    3,912.03x = 5,392.58 × 2,790.99
  4. Step 4: Simplify right side
    3,912.03x = 15,050,622.90
  5. Step 5: Solve for x
    x = 15,050,622.90/3,912.03
  6. Step 6: Final answer
    x = 3,847.27

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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.