Home / 2,120.44-3,181.08-1,025.56

Finding the Fourth Proportional to 2,120.44, 3,181.08 and 1,025.56

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Solution

The fourth proportional to 2,120.44, 3,181.08 and 1,025.56 is: 1,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.44 : 3,181.08 = 1,025.56 : x
  2. Step 2: Convert to fraction form
    2,120.44/3,181.08 = 1,025.56/x
  3. Step 3: Cross multiply
    2,120.44x = 3,181.08 × 1,025.56
  4. Step 4: Simplify right side
    2,120.44x = 3,262,388.40
  5. Step 5: Solve for x
    x = 3,262,388.40/2,120.44
  6. Step 6: Final answer
    x = 1,538.54

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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.