Home / 2,113.44-3,155.31-1,906.08

Finding the Fourth Proportional to 2,113.44, 3,155.31 and 1,906.08

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Solution

The fourth proportional to 2,113.44, 3,155.31 and 1,906.08 is: 2,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.44 : 3,155.31 = 1,906.08 : x
  2. Step 2: Convert to fraction form
    2,113.44/3,155.31 = 1,906.08/x
  3. Step 3: Cross multiply
    2,113.44x = 3,155.31 × 1,906.08
  4. Step 4: Simplify right side
    2,113.44x = 6,014,273.28
  5. Step 5: Solve for x
    x = 6,014,273.28/2,113.44
  6. Step 6: Final answer
    x = 2,845.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.