Home / 2,105.12-3,157.68-2,054.37

Finding the Fourth Proportional to 2,105.12, 3,157.68 and 2,054.37

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Solution

The fourth proportional to 2,105.12, 3,157.68 and 2,054.37 is: 3,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105.12 : 3,157.68 = 2,054.37 : x
  2. Step 2: Convert to fraction form
    2,105.12/3,157.68 = 2,054.37/x
  3. Step 3: Cross multiply
    2,105.12x = 3,157.68 × 2,054.37
  4. Step 4: Simplify right side
    2,105.12x = 6,487,043.06
  5. Step 5: Solve for x
    x = 6,487,043.06/2,105.12
  6. Step 6: Final answer
    x = 3,081.56

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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.