Home / 1,236.69-1,853.67-1,090.59

Finding the Fourth Proportional to 1,236.69, 1,853.67 and 1,090.59

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Solution

The fourth proportional to 1,236.69, 1,853.67 and 1,090.59 is: 1,634.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.69 : 1,853.67 = 1,090.59 : x
  2. Step 2: Convert to fraction form
    1,236.69/1,853.67 = 1,090.59/x
  3. Step 3: Cross multiply
    1,236.69x = 1,853.67 × 1,090.59
  4. Step 4: Simplify right side
    1,236.69x = 2,021,593.97
  5. Step 5: Solve for x
    x = 2,021,593.97/1,236.69
  6. Step 6: Final answer
    x = 1,634.68

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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.