Home / 4,872.78-6,725.79-2,884.02

Finding the Fourth Proportional to 4,872.78, 6,725.79 and 2,884.02

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Solution

The fourth proportional to 4,872.78, 6,725.79 and 2,884.02 is: 3,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.78 : 6,725.79 = 2,884.02 : x
  2. Step 2: Convert to fraction form
    4,872.78/6,725.79 = 2,884.02/x
  3. Step 3: Cross multiply
    4,872.78x = 6,725.79 × 2,884.02
  4. Step 4: Simplify right side
    4,872.78x = 19,397,312.88
  5. Step 5: Solve for x
    x = 19,397,312.88/4,872.78
  6. Step 6: Final answer
    x = 3,980.75

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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.