Home / 2,481.44-3,415.80-2,145.18

Finding the Fourth Proportional to 2,481.44, 3,415.80 and 2,145.18

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Solution

The fourth proportional to 2,481.44, 3,415.80 and 2,145.18 is: 2,952.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.44 : 3,415.80 = 2,145.18 : x
  2. Step 2: Convert to fraction form
    2,481.44/3,415.80 = 2,145.18/x
  3. Step 3: Cross multiply
    2,481.44x = 3,415.80 × 2,145.18
  4. Step 4: Simplify right side
    2,481.44x = 7,327,526.70
  5. Step 5: Solve for x
    x = 7,327,526.70/2,481.44
  6. Step 6: Final answer
    x = 2,952.94

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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.