Home / 4,950-6,831.48-3,086.64

Finding the Fourth Proportional to 4,950, 6,831.48 and 3,086.64

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Solution

The fourth proportional to 4,950, 6,831.48 and 3,086.64 is: 4,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,950 : 6,831.48 = 3,086.64 : x
  2. Step 2: Convert to fraction form
    4,950/6,831.48 = 3,086.64/x
  3. Step 3: Cross multiply
    4,950x = 6,831.48 × 3,086.64
  4. Step 4: Simplify right side
    4,950x = 21,086,319.43
  5. Step 5: Solve for x
    x = 21,086,319.43/4,950
  6. Step 6: Final answer
    x = 4,259.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.