Home / 4,979.89-6,872.43-2,741.86

Finding the Fourth Proportional to 4,979.89, 6,872.43 and 2,741.86

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Solution

The fourth proportional to 4,979.89, 6,872.43 and 2,741.86 is: 3,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.89 : 6,872.43 = 2,741.86 : x
  2. Step 2: Convert to fraction form
    4,979.89/6,872.43 = 2,741.86/x
  3. Step 3: Cross multiply
    4,979.89x = 6,872.43 × 2,741.86
  4. Step 4: Simplify right side
    4,979.89x = 18,843,192.85
  5. Step 5: Solve for x
    x = 18,843,192.85/4,979.89
  6. Step 6: Final answer
    x = 3,783.86

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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.