Home / 3,112.62-4,667.91-2,420.07

Finding the Fourth Proportional to 3,112.62, 4,667.91 and 2,420.07

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Solution

The fourth proportional to 3,112.62, 4,667.91 and 2,420.07 is: 3,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.62 : 4,667.91 = 2,420.07 : x
  2. Step 2: Convert to fraction form
    3,112.62/4,667.91 = 2,420.07/x
  3. Step 3: Cross multiply
    3,112.62x = 4,667.91 × 2,420.07
  4. Step 4: Simplify right side
    3,112.62x = 11,296,668.95
  5. Step 5: Solve for x
    x = 11,296,668.95/3,112.62
  6. Step 6: Final answer
    x = 3,629.31

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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.