Home / 3,022.81-4,534.37-831.49

Finding the Fourth Proportional to 3,022.81, 4,534.37 and 831.49

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Solution

The fourth proportional to 3,022.81, 4,534.37 and 831.49 is: 1,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.81 : 4,534.37 = 831.49 : x
  2. Step 2: Convert to fraction form
    3,022.81/4,534.37 = 831.49/x
  3. Step 3: Cross multiply
    3,022.81x = 4,534.37 × 831.49
  4. Step 4: Simplify right side
    3,022.81x = 3,770,283.31
  5. Step 5: Solve for x
    x = 3,770,283.31/3,022.81
  6. Step 6: Final answer
    x = 1,247.28

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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.