Home / 1,910.66-2,638.26-1,556.63

Finding the Fourth Proportional to 1,910.66, 2,638.26 and 1,556.63

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Solution

The fourth proportional to 1,910.66, 2,638.26 and 1,556.63 is: 2,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.66 : 2,638.26 = 1,556.63 : x
  2. Step 2: Convert to fraction form
    1,910.66/2,638.26 = 1,556.63/x
  3. Step 3: Cross multiply
    1,910.66x = 2,638.26 × 1,556.63
  4. Step 4: Simplify right side
    1,910.66x = 4,106,791.37
  5. Step 5: Solve for x
    x = 4,106,791.37/1,910.66
  6. Step 6: Final answer
    x = 2,149.42

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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.