Home / 4,739.04-7,121.52-2,791.80

Finding the Fourth Proportional to 4,739.04, 7,121.52 and 2,791.80

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Solution

The fourth proportional to 4,739.04, 7,121.52 and 2,791.80 is: 4,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.04 : 7,121.52 = 2,791.80 : x
  2. Step 2: Convert to fraction form
    4,739.04/7,121.52 = 2,791.80/x
  3. Step 3: Cross multiply
    4,739.04x = 7,121.52 × 2,791.80
  4. Step 4: Simplify right side
    4,739.04x = 19,881,859.54
  5. Step 5: Solve for x
    x = 19,881,859.54/4,739.04
  6. Step 6: Final answer
    x = 4,195.33

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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.