Home / 3,183.42-4,394.63-2,122.95

Finding the Fourth Proportional to 3,183.42, 4,394.63 and 2,122.95

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Solution

The fourth proportional to 3,183.42, 4,394.63 and 2,122.95 is: 2,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.42 : 4,394.63 = 2,122.95 : x
  2. Step 2: Convert to fraction form
    3,183.42/4,394.63 = 2,122.95/x
  3. Step 3: Cross multiply
    3,183.42x = 4,394.63 × 2,122.95
  4. Step 4: Simplify right side
    3,183.42x = 9,329,569.14
  5. Step 5: Solve for x
    x = 9,329,569.14/3,183.42
  6. Step 6: Final answer
    x = 2,930.67

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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.