Home / 2,115.73-3,173.32-1,018.45

Finding the Fourth Proportional to 2,115.73, 3,173.32 and 1,018.45

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Solution

The fourth proportional to 2,115.73, 3,173.32 and 1,018.45 is: 1,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.73 : 3,173.32 = 1,018.45 : x
  2. Step 2: Convert to fraction form
    2,115.73/3,173.32 = 1,018.45/x
  3. Step 3: Cross multiply
    2,115.73x = 3,173.32 × 1,018.45
  4. Step 4: Simplify right side
    2,115.73x = 3,231,867.75
  5. Step 5: Solve for x
    x = 3,231,867.75/2,115.73
  6. Step 6: Final answer
    x = 1,527.54

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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.