Home / 3,021.38-4,168.08-2,137.67

Finding the Fourth Proportional to 3,021.38, 4,168.08 and 2,137.67

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Solution

The fourth proportional to 3,021.38, 4,168.08 and 2,137.67 is: 2,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.38 : 4,168.08 = 2,137.67 : x
  2. Step 2: Convert to fraction form
    3,021.38/4,168.08 = 2,137.67/x
  3. Step 3: Cross multiply
    3,021.38x = 4,168.08 × 2,137.67
  4. Step 4: Simplify right side
    3,021.38x = 8,909,958.73
  5. Step 5: Solve for x
    x = 8,909,958.73/3,021.38
  6. Step 6: Final answer
    x = 2,948.97

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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.