Home / 2,826.85-3,900.38-1,831.99

Finding the Fourth Proportional to 2,826.85, 3,900.38 and 1,831.99

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Solution

The fourth proportional to 2,826.85, 3,900.38 and 1,831.99 is: 2,527.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.85 : 3,900.38 = 1,831.99 : x
  2. Step 2: Convert to fraction form
    2,826.85/3,900.38 = 1,831.99/x
  3. Step 3: Cross multiply
    2,826.85x = 3,900.38 × 1,831.99
  4. Step 4: Simplify right side
    2,826.85x = 7,145,461.68
  5. Step 5: Solve for x
    x = 7,145,461.68/2,826.85
  6. Step 6: Final answer
    x = 2,527.71

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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.