Home / 4,747.14-7,122.60-2,405.88

Finding the Fourth Proportional to 4,747.14, 7,122.60 and 2,405.88

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Solution

The fourth proportional to 4,747.14, 7,122.60 and 2,405.88 is: 3,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.14 : 7,122.60 = 2,405.88 : x
  2. Step 2: Convert to fraction form
    4,747.14/7,122.60 = 2,405.88/x
  3. Step 3: Cross multiply
    4,747.14x = 7,122.60 × 2,405.88
  4. Step 4: Simplify right side
    4,747.14x = 17,136,120.89
  5. Step 5: Solve for x
    x = 17,136,120.89/4,747.14
  6. Step 6: Final answer
    x = 3,609.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.