Home / 2,910.96-4,366.44-831.18

Finding the Fourth Proportional to 2,910.96, 4,366.44 and 831.18

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Solution

The fourth proportional to 2,910.96, 4,366.44 and 831.18 is: 1,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.96 : 4,366.44 = 831.18 : x
  2. Step 2: Convert to fraction form
    2,910.96/4,366.44 = 831.18/x
  3. Step 3: Cross multiply
    2,910.96x = 4,366.44 × 831.18
  4. Step 4: Simplify right side
    2,910.96x = 3,629,297.60
  5. Step 5: Solve for x
    x = 3,629,297.60/2,910.96
  6. Step 6: Final answer
    x = 1,246.77

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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.