Home / 3,021.72-4,535.82-1,291.56

Finding the Fourth Proportional to 3,021.72, 4,535.82 and 1,291.56

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Solution

The fourth proportional to 3,021.72, 4,535.82 and 1,291.56 is: 1,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.72 : 4,535.82 = 1,291.56 : x
  2. Step 2: Convert to fraction form
    3,021.72/4,535.82 = 1,291.56/x
  3. Step 3: Cross multiply
    3,021.72x = 4,535.82 × 1,291.56
  4. Step 4: Simplify right side
    3,021.72x = 5,858,283.68
  5. Step 5: Solve for x
    x = 5,858,283.68/3,021.72
  6. Step 6: Final answer
    x = 1,938.72

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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.