Home / 3,022.55-4,533.83-831.45

Finding the Fourth Proportional to 3,022.55, 4,533.83 and 831.45

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Solution

The fourth proportional to 3,022.55, 4,533.83 and 831.45 is: 1,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.55 : 4,533.83 = 831.45 : x
  2. Step 2: Convert to fraction form
    3,022.55/4,533.83 = 831.45/x
  3. Step 3: Cross multiply
    3,022.55x = 4,533.83 × 831.45
  4. Step 4: Simplify right side
    3,022.55x = 3,769,668.92
  5. Step 5: Solve for x
    x = 3,769,668.92/3,022.55
  6. Step 6: Final answer
    x = 1,247.18

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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.