Home / 3,822.85-5,731.19-1,356.31

Finding the Fourth Proportional to 3,822.85, 5,731.19 and 1,356.31

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Solution

The fourth proportional to 3,822.85, 5,731.19 and 1,356.31 is: 2,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.85 : 5,731.19 = 1,356.31 : x
  2. Step 2: Convert to fraction form
    3,822.85/5,731.19 = 1,356.31/x
  3. Step 3: Cross multiply
    3,822.85x = 5,731.19 × 1,356.31
  4. Step 4: Simplify right side
    3,822.85x = 7,773,270.31
  5. Step 5: Solve for x
    x = 7,773,270.31/3,822.85
  6. Step 6: Final answer
    x = 2,033.37

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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.