Home / 3,228.36-4,455.54-1,831.56

Finding the Fourth Proportional to 3,228.36, 4,455.54 and 1,831.56

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Solution

The fourth proportional to 3,228.36, 4,455.54 and 1,831.56 is: 2,527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.36 : 4,455.54 = 1,831.56 : x
  2. Step 2: Convert to fraction form
    3,228.36/4,455.54 = 1,831.56/x
  3. Step 3: Cross multiply
    3,228.36x = 4,455.54 × 1,831.56
  4. Step 4: Simplify right side
    3,228.36x = 8,160,588.84
  5. Step 5: Solve for x
    x = 8,160,588.84/3,228.36
  6. Step 6: Final answer
    x = 2,527.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.