Home / 2,138.37-3,205.91-1,443.08

Finding the Fourth Proportional to 2,138.37, 3,205.91 and 1,443.08

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Solution

The fourth proportional to 2,138.37, 3,205.91 and 1,443.08 is: 2,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.37 : 3,205.91 = 1,443.08 : x
  2. Step 2: Convert to fraction form
    2,138.37/3,205.91 = 1,443.08/x
  3. Step 3: Cross multiply
    2,138.37x = 3,205.91 × 1,443.08
  4. Step 4: Simplify right side
    2,138.37x = 4,626,396.23
  5. Step 5: Solve for x
    x = 4,626,396.23/2,138.37
  6. Step 6: Final answer
    x = 2,163.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.