Home / 2,975.31-4,462.98-1,221.27

Finding the Fourth Proportional to 2,975.31, 4,462.98 and 1,221.27

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Solution

The fourth proportional to 2,975.31, 4,462.98 and 1,221.27 is: 1,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.31 : 4,462.98 = 1,221.27 : x
  2. Step 2: Convert to fraction form
    2,975.31/4,462.98 = 1,221.27/x
  3. Step 3: Cross multiply
    2,975.31x = 4,462.98 × 1,221.27
  4. Step 4: Simplify right side
    2,975.31x = 5,450,503.58
  5. Step 5: Solve for x
    x = 5,450,503.58/2,975.31
  6. Step 6: Final answer
    x = 1,831.91

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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.