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Finding the Fourth Proportional to 4,722, 6,516.88 and 2,859.04

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Solution

The fourth proportional to 4,722, 6,516.88 and 2,859.04 is: 3,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722 : 6,516.88 = 2,859.04 : x
  2. Step 2: Convert to fraction form
    4,722/6,516.88 = 2,859.04/x
  3. Step 3: Cross multiply
    4,722x = 6,516.88 × 2,859.04
  4. Step 4: Simplify right side
    4,722x = 18,632,020.60
  5. Step 5: Solve for x
    x = 18,632,020.60/4,722
  6. Step 6: Final answer
    x = 3,945.79

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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.