Home / 2,831.88-4,241.34-1,966.80

Finding the Fourth Proportional to 2,831.88, 4,241.34 and 1,966.80

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Solution

The fourth proportional to 2,831.88, 4,241.34 and 1,966.80 is: 2,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.88 : 4,241.34 = 1,966.80 : x
  2. Step 2: Convert to fraction form
    2,831.88/4,241.34 = 1,966.80/x
  3. Step 3: Cross multiply
    2,831.88x = 4,241.34 × 1,966.80
  4. Step 4: Simplify right side
    2,831.88x = 8,341,867.51
  5. Step 5: Solve for x
    x = 8,341,867.51/2,831.88
  6. Step 6: Final answer
    x = 2,945.70

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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.