Home / 1,236.26-1,853.71-1,090.35

Finding the Fourth Proportional to 1,236.26, 1,853.71 and 1,090.35

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Solution

The fourth proportional to 1,236.26, 1,853.71 and 1,090.35 is: 1,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.26 : 1,853.71 = 1,090.35 : x
  2. Step 2: Convert to fraction form
    1,236.26/1,853.71 = 1,090.35/x
  3. Step 3: Cross multiply
    1,236.26x = 1,853.71 × 1,090.35
  4. Step 4: Simplify right side
    1,236.26x = 2,021,190.43
  5. Step 5: Solve for x
    x = 2,021,190.43/1,236.26
  6. Step 6: Final answer
    x = 1,634.92

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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.