Home / 2,161.37-3,245.29-1,237.97

Finding the Fourth Proportional to 2,161.37, 3,245.29 and 1,237.97

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Solution

The fourth proportional to 2,161.37, 3,245.29 and 1,237.97 is: 1,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.37 : 3,245.29 = 1,237.97 : x
  2. Step 2: Convert to fraction form
    2,161.37/3,245.29 = 1,237.97/x
  3. Step 3: Cross multiply
    2,161.37x = 3,245.29 × 1,237.97
  4. Step 4: Simplify right side
    2,161.37x = 4,017,552.34
  5. Step 5: Solve for x
    x = 4,017,552.34/2,161.37
  6. Step 6: Final answer
    x = 1,858.80

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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.