Home / 4,831.26-7,245.71-1,321.28

Finding the Fourth Proportional to 4,831.26, 7,245.71 and 1,321.28

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Solution

The fourth proportional to 4,831.26, 7,245.71 and 1,321.28 is: 1,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.26 : 7,245.71 = 1,321.28 : x
  2. Step 2: Convert to fraction form
    4,831.26/7,245.71 = 1,321.28/x
  3. Step 3: Cross multiply
    4,831.26x = 7,245.71 × 1,321.28
  4. Step 4: Simplify right side
    4,831.26x = 9,573,601.00
  5. Step 5: Solve for x
    x = 9,573,601.00/4,831.26
  6. Step 6: Final answer
    x = 1,981.60

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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.