Home / 7,220.88-10,831.64-2,290.42

Finding the Fourth Proportional to 7,220.88, 10,831.64 and 2,290.42

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Solution

The fourth proportional to 7,220.88, 10,831.64 and 2,290.42 is: 3,435.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.88 : 10,831.64 = 2,290.42 : x
  2. Step 2: Convert to fraction form
    7,220.88/10,831.64 = 2,290.42/x
  3. Step 3: Cross multiply
    7,220.88x = 10,831.64 × 2,290.42
  4. Step 4: Simplify right side
    7,220.88x = 24,809,004.89
  5. Step 5: Solve for x
    x = 24,809,004.89/7,220.88
  6. Step 6: Final answer
    x = 3,435.73

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1.5x scale

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.