Home / 4,208.76-6,310.86-1,286.28

Finding the Fourth Proportional to 4,208.76, 6,310.86 and 1,286.28

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Solution

The fourth proportional to 4,208.76, 6,310.86 and 1,286.28 is: 1,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,208.76 : 6,310.86 = 1,286.28 : x
  2. Step 2: Convert to fraction form
    4,208.76/6,310.86 = 1,286.28/x
  3. Step 3: Cross multiply
    4,208.76x = 6,310.86 × 1,286.28
  4. Step 4: Simplify right side
    4,208.76x = 8,117,533.00
  5. Step 5: Solve for x
    x = 8,117,533.00/4,208.76
  6. Step 6: Final answer
    x = 1,928.72

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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.