Home / 4,747.68-7,121.79-2,666.07

Finding the Fourth Proportional to 4,747.68, 7,121.79 and 2,666.07

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Solution

The fourth proportional to 4,747.68, 7,121.79 and 2,666.07 is: 3,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.68 : 7,121.79 = 2,666.07 : x
  2. Step 2: Convert to fraction form
    4,747.68/7,121.79 = 2,666.07/x
  3. Step 3: Cross multiply
    4,747.68x = 7,121.79 × 2,666.07
  4. Step 4: Simplify right side
    4,747.68x = 18,987,190.67
  5. Step 5: Solve for x
    x = 18,987,190.67/4,747.68
  6. Step 6: Final answer
    x = 3,999.26

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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.