Home / 4,947.28-6,831.87-3,181.95

Finding the Fourth Proportional to 4,947.28, 6,831.87 and 3,181.95

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Solution

The fourth proportional to 4,947.28, 6,831.87 and 3,181.95 is: 4,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.28 : 6,831.87 = 3,181.95 : x
  2. Step 2: Convert to fraction form
    4,947.28/6,831.87 = 3,181.95/x
  3. Step 3: Cross multiply
    4,947.28x = 6,831.87 × 3,181.95
  4. Step 4: Simplify right side
    4,947.28x = 21,738,618.68
  5. Step 5: Solve for x
    x = 21,738,618.68/4,947.28
  6. Step 6: Final answer
    x = 4,394.06

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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.