Home / 2,975.31-4,462.97-1,221.26

Finding the Fourth Proportional to 2,975.31, 4,462.97 and 1,221.26

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Solution

The fourth proportional to 2,975.31, 4,462.97 and 1,221.26 is: 1,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.31 : 4,462.97 = 1,221.26 : x
  2. Step 2: Convert to fraction form
    2,975.31/4,462.97 = 1,221.26/x
  3. Step 3: Cross multiply
    2,975.31x = 4,462.97 × 1,221.26
  4. Step 4: Simplify right side
    2,975.31x = 5,450,418.32
  5. Step 5: Solve for x
    x = 5,450,418.32/2,975.31
  6. Step 6: Final answer
    x = 1,831.88

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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.