Home / 1,906.23-2,630.42-1,120.53

Finding the Fourth Proportional to 1,906.23, 2,630.42 and 1,120.53

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Solution

The fourth proportional to 1,906.23, 2,630.42 and 1,120.53 is: 1,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.23 : 2,630.42 = 1,120.53 : x
  2. Step 2: Convert to fraction form
    1,906.23/2,630.42 = 1,120.53/x
  3. Step 3: Cross multiply
    1,906.23x = 2,630.42 × 1,120.53
  4. Step 4: Simplify right side
    1,906.23x = 2,947,479.29
  5. Step 5: Solve for x
    x = 2,947,479.29/1,906.23
  6. Step 6: Final answer
    x = 1,546.23

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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.