Home / 2,871.45-4,304.34-1,181.79

Finding the Fourth Proportional to 2,871.45, 4,304.34 and 1,181.79

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Solution

The fourth proportional to 2,871.45, 4,304.34 and 1,181.79 is: 1,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.45 : 4,304.34 = 1,181.79 : x
  2. Step 2: Convert to fraction form
    2,871.45/4,304.34 = 1,181.79/x
  3. Step 3: Cross multiply
    2,871.45x = 4,304.34 × 1,181.79
  4. Step 4: Simplify right side
    2,871.45x = 5,086,825.97
  5. Step 5: Solve for x
    x = 5,086,825.97/2,871.45
  6. Step 6: Final answer
    x = 1,771.52

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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.