Home / 6,783.56-10,172.30-2,831.88

Finding the Fourth Proportional to 6,783.56, 10,172.30 and 2,831.88

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Solution

The fourth proportional to 6,783.56, 10,172.30 and 2,831.88 is: 4,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783.56 : 10,172.30 = 2,831.88 : x
  2. Step 2: Convert to fraction form
    6,783.56/10,172.30 = 2,831.88/x
  3. Step 3: Cross multiply
    6,783.56x = 10,172.30 × 2,831.88
  4. Step 4: Simplify right side
    6,783.56x = 28,806,732.92
  5. Step 5: Solve for x
    x = 28,806,732.92/6,783.56
  6. Step 6: Final answer
    x = 4,246.55

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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.