Home / 2,709.21-3,738.11-1,589.75

Finding the Fourth Proportional to 2,709.21, 3,738.11 and 1,589.75

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Solution

The fourth proportional to 2,709.21, 3,738.11 and 1,589.75 is: 2,193.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.21 : 3,738.11 = 1,589.75 : x
  2. Step 2: Convert to fraction form
    2,709.21/3,738.11 = 1,589.75/x
  3. Step 3: Cross multiply
    2,709.21x = 3,738.11 × 1,589.75
  4. Step 4: Simplify right side
    2,709.21x = 5,942,660.37
  5. Step 5: Solve for x
    x = 5,942,660.37/2,709.21
  6. Step 6: Final answer
    x = 2,193.50

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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.