Home / 2,021.56-3,032.34-1,292.56

Finding the Fourth Proportional to 2,021.56, 3,032.34 and 1,292.56

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Solution

The fourth proportional to 2,021.56, 3,032.34 and 1,292.56 is: 1,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.56 : 3,032.34 = 1,292.56 : x
  2. Step 2: Convert to fraction form
    2,021.56/3,032.34 = 1,292.56/x
  3. Step 3: Cross multiply
    2,021.56x = 3,032.34 × 1,292.56
  4. Step 4: Simplify right side
    2,021.56x = 3,919,481.39
  5. Step 5: Solve for x
    x = 3,919,481.39/2,021.56
  6. Step 6: Final answer
    x = 1,938.84

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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.