Home / 1,906.23-2,630.94-1,120.32

Finding the Fourth Proportional to 1,906.23, 2,630.94 and 1,120.32

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Solution

The fourth proportional to 1,906.23, 2,630.94 and 1,120.32 is: 1,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.23 : 2,630.94 = 1,120.32 : x
  2. Step 2: Convert to fraction form
    1,906.23/2,630.94 = 1,120.32/x
  3. Step 3: Cross multiply
    1,906.23x = 2,630.94 × 1,120.32
  4. Step 4: Simplify right side
    1,906.23x = 2,947,494.70
  5. Step 5: Solve for x
    x = 2,947,494.70/1,906.23
  6. Step 6: Final answer
    x = 1,546.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.