Home / 2,711.21-3,738.38-2,212.29

Finding the Fourth Proportional to 2,711.21, 3,738.38 and 2,212.29

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Solution

The fourth proportional to 2,711.21, 3,738.38 and 2,212.29 is: 3,050.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.21 : 3,738.38 = 2,212.29 : x
  2. Step 2: Convert to fraction form
    2,711.21/3,738.38 = 2,212.29/x
  3. Step 3: Cross multiply
    2,711.21x = 3,738.38 × 2,212.29
  4. Step 4: Simplify right side
    2,711.21x = 8,270,369.63
  5. Step 5: Solve for x
    x = 8,270,369.63/2,711.21
  6. Step 6: Final answer
    x = 3,050.44

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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.