Home / 3,831.18-5,739.38-2,828.76

Finding the Fourth Proportional to 3,831.18, 5,739.38 and 2,828.76

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Solution

The fourth proportional to 3,831.18, 5,739.38 and 2,828.76 is: 4,237.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.18 : 5,739.38 = 2,828.76 : x
  2. Step 2: Convert to fraction form
    3,831.18/5,739.38 = 2,828.76/x
  3. Step 3: Cross multiply
    3,831.18x = 5,739.38 × 2,828.76
  4. Step 4: Simplify right side
    3,831.18x = 16,235,328.57
  5. Step 5: Solve for x
    x = 16,235,328.57/3,831.18
  6. Step 6: Final answer
    x = 4,237.68

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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.