Home / 3,147.93-4,717.04-1,991.25

Finding the Fourth Proportional to 3,147.93, 4,717.04 and 1,991.25

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Solution

The fourth proportional to 3,147.93, 4,717.04 and 1,991.25 is: 2,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.93 : 4,717.04 = 1,991.25 : x
  2. Step 2: Convert to fraction form
    3,147.93/4,717.04 = 1,991.25/x
  3. Step 3: Cross multiply
    3,147.93x = 4,717.04 × 1,991.25
  4. Step 4: Simplify right side
    3,147.93x = 9,392,795.94
  5. Step 5: Solve for x
    x = 9,392,795.94/3,147.93
  6. Step 6: Final answer
    x = 2,983.80

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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.