Home / 2,831.96-4,251.60-2,183.12

Finding the Fourth Proportional to 2,831.96, 4,251.60 and 2,183.12

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Solution

The fourth proportional to 2,831.96, 4,251.60 and 2,183.12 is: 3,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.96 : 4,251.60 = 2,183.12 : x
  2. Step 2: Convert to fraction form
    2,831.96/4,251.60 = 2,183.12/x
  3. Step 3: Cross multiply
    2,831.96x = 4,251.60 × 2,183.12
  4. Step 4: Simplify right side
    2,831.96x = 9,281,752.99
  5. Step 5: Solve for x
    x = 9,281,752.99/2,831.96
  6. Step 6: Final answer
    x = 3,277.50

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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.