Home / 3,723.12-5,137.29-2,151.36

Finding the Fourth Proportional to 3,723.12, 5,137.29 and 2,151.36

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Solution

The fourth proportional to 3,723.12, 5,137.29 and 2,151.36 is: 2,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.12 : 5,137.29 = 2,151.36 : x
  2. Step 2: Convert to fraction form
    3,723.12/5,137.29 = 2,151.36/x
  3. Step 3: Cross multiply
    3,723.12x = 5,137.29 × 2,151.36
  4. Step 4: Simplify right side
    3,723.12x = 11,052,160.21
  5. Step 5: Solve for x
    x = 11,052,160.21/3,723.12
  6. Step 6: Final answer
    x = 2,968.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.