Home / 7,220.46-10,831.07-2,290.49

Finding the Fourth Proportional to 7,220.46, 10,831.07 and 2,290.49

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Solution

The fourth proportional to 7,220.46, 10,831.07 and 2,290.49 is: 3,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.46 : 10,831.07 = 2,290.49 : x
  2. Step 2: Convert to fraction form
    7,220.46/10,831.07 = 2,290.49/x
  3. Step 3: Cross multiply
    7,220.46x = 10,831.07 × 2,290.49
  4. Step 4: Simplify right side
    7,220.46x = 24,808,391.92
  5. Step 5: Solve for x
    x = 24,808,391.92/7,220.46
  6. Step 6: Final answer
    x = 3,435.85

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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.