Home / 2,270.70-3,133.44-1,431.54

Finding the Fourth Proportional to 2,270.70, 3,133.44 and 1,431.54

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Solution

The fourth proportional to 2,270.70, 3,133.44 and 1,431.54 is: 1,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.70 : 3,133.44 = 1,431.54 : x
  2. Step 2: Convert to fraction form
    2,270.70/3,133.44 = 1,431.54/x
  3. Step 3: Cross multiply
    2,270.70x = 3,133.44 × 1,431.54
  4. Step 4: Simplify right side
    2,270.70x = 4,485,644.70
  5. Step 5: Solve for x
    x = 4,485,644.70/2,270.70
  6. Step 6: Final answer
    x = 1,975.45

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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.