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Finding the Fourth Proportional to 4,872.50, 6,723.78 and 2,748.08

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Solution

The fourth proportional to 4,872.50, 6,723.78 and 2,748.08 is: 3,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.50 : 6,723.78 = 2,748.08 : x
  2. Step 2: Convert to fraction form
    4,872.50/6,723.78 = 2,748.08/x
  3. Step 3: Cross multiply
    4,872.50x = 6,723.78 × 2,748.08
  4. Step 4: Simplify right side
    4,872.50x = 18,477,485.34
  5. Step 5: Solve for x
    x = 18,477,485.34/4,872.50
  6. Step 6: Final answer
    x = 3,792.20

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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.