Home / 4,242.78-5,853.96-2,729.64

Finding the Fourth Proportional to 4,242.78, 5,853.96 and 2,729.64

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Solution

The fourth proportional to 4,242.78, 5,853.96 and 2,729.64 is: 3,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.78 : 5,853.96 = 2,729.64 : x
  2. Step 2: Convert to fraction form
    4,242.78/5,853.96 = 2,729.64/x
  3. Step 3: Cross multiply
    4,242.78x = 5,853.96 × 2,729.64
  4. Step 4: Simplify right side
    4,242.78x = 15,979,203.37
  5. Step 5: Solve for x
    x = 15,979,203.37/4,242.78
  6. Step 6: Final answer
    x = 3,766.21

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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.