Home / 2,198.96-3,296.48-831.92

Finding the Fourth Proportional to 2,198.96, 3,296.48 and 831.92

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Solution

The fourth proportional to 2,198.96, 3,296.48 and 831.92 is: 1,247.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.96 : 3,296.48 = 831.92 : x
  2. Step 2: Convert to fraction form
    2,198.96/3,296.48 = 831.92/x
  3. Step 3: Cross multiply
    2,198.96x = 3,296.48 × 831.92
  4. Step 4: Simplify right side
    2,198.96x = 2,742,407.64
  5. Step 5: Solve for x
    x = 2,742,407.64/2,198.96
  6. Step 6: Final answer
    x = 1,247.14

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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.