Home / 3,745.31-5,131.01-3,605.09

Finding the Fourth Proportional to 3,745.31, 5,131.01 and 3,605.09

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Solution

The fourth proportional to 3,745.31, 5,131.01 and 3,605.09 is: 4,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.31 : 5,131.01 = 3,605.09 : x
  2. Step 2: Convert to fraction form
    3,745.31/5,131.01 = 3,605.09/x
  3. Step 3: Cross multiply
    3,745.31x = 5,131.01 × 3,605.09
  4. Step 4: Simplify right side
    3,745.31x = 18,497,765.06
  5. Step 5: Solve for x
    x = 18,497,765.06/3,745.31
  6. Step 6: Final answer
    x = 4,938.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.