Home / 2,138.24-3,201.44-1,674.88

Finding the Fourth Proportional to 2,138.24, 3,201.44 and 1,674.88

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Solution

The fourth proportional to 2,138.24, 3,201.44 and 1,674.88 is: 2,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.24 : 3,201.44 = 1,674.88 : x
  2. Step 2: Convert to fraction form
    2,138.24/3,201.44 = 1,674.88/x
  3. Step 3: Cross multiply
    2,138.24x = 3,201.44 × 1,674.88
  4. Step 4: Simplify right side
    2,138.24x = 5,362,027.83
  5. Step 5: Solve for x
    x = 5,362,027.83/2,138.24
  6. Step 6: Final answer
    x = 2,507.68

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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.