Home / 3,022.76-4,170.38-1,961.84

Finding the Fourth Proportional to 3,022.76, 4,170.38 and 1,961.84

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Solution

The fourth proportional to 3,022.76, 4,170.38 and 1,961.84 is: 2,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.76 : 4,170.38 = 1,961.84 : x
  2. Step 2: Convert to fraction form
    3,022.76/4,170.38 = 1,961.84/x
  3. Step 3: Cross multiply
    3,022.76x = 4,170.38 × 1,961.84
  4. Step 4: Simplify right side
    3,022.76x = 8,181,587.64
  5. Step 5: Solve for x
    x = 8,181,587.64/3,022.76
  6. Step 6: Final answer
    x = 2,706.67

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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.