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Finding the Fourth Proportional to 4,872.72, 6,725.22 and 2,884.38

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Solution

The fourth proportional to 4,872.72, 6,725.22 and 2,884.38 is: 3,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.72 : 6,725.22 = 2,884.38 : x
  2. Step 2: Convert to fraction form
    4,872.72/6,725.22 = 2,884.38/x
  3. Step 3: Cross multiply
    4,872.72x = 6,725.22 × 2,884.38
  4. Step 4: Simplify right side
    4,872.72x = 19,398,090.06
  5. Step 5: Solve for x
    x = 19,398,090.06/4,872.72
  6. Step 6: Final answer
    x = 3,980.96

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1.5x scale

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.