Home / 3,783.29-5,218.79-2,270.45

Finding the Fourth Proportional to 3,783.29, 5,218.79 and 2,270.45

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Solution

The fourth proportional to 3,783.29, 5,218.79 and 2,270.45 is: 3,131.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.29 : 5,218.79 = 2,270.45 : x
  2. Step 2: Convert to fraction form
    3,783.29/5,218.79 = 2,270.45/x
  3. Step 3: Cross multiply
    3,783.29x = 5,218.79 × 2,270.45
  4. Step 4: Simplify right side
    3,783.29x = 11,848,986.70
  5. Step 5: Solve for x
    x = 11,848,986.70/3,783.29
  6. Step 6: Final answer
    x = 3,131.92

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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.