Home / 2,441.12-3,669.36-2,120.48

Finding the Fourth Proportional to 2,441.12, 3,669.36 and 2,120.48

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Solution

The fourth proportional to 2,441.12, 3,669.36 and 2,120.48 is: 3,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,441.12 : 3,669.36 = 2,120.48 : x
  2. Step 2: Convert to fraction form
    2,441.12/3,669.36 = 2,120.48/x
  3. Step 3: Cross multiply
    2,441.12x = 3,669.36 × 2,120.48
  4. Step 4: Simplify right side
    2,441.12x = 7,780,804.49
  5. Step 5: Solve for x
    x = 7,780,804.49/2,441.12
  6. Step 6: Final answer
    x = 3,187.39

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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.