Home / 7,217.79-10,831.55-3,270.12

Finding the Fourth Proportional to 7,217.79, 10,831.55 and 3,270.12

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Solution

The fourth proportional to 7,217.79, 10,831.55 and 3,270.12 is: 4,907.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.79 : 10,831.55 = 3,270.12 : x
  2. Step 2: Convert to fraction form
    7,217.79/10,831.55 = 3,270.12/x
  3. Step 3: Cross multiply
    7,217.79x = 10,831.55 × 3,270.12
  4. Step 4: Simplify right side
    7,217.79x = 35,420,451.94
  5. Step 5: Solve for x
    x = 35,420,451.94/7,217.79
  6. Step 6: Final answer
    x = 4,907.38

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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.