Home / 4,481.28-6,716.16-1,880.64

Finding the Fourth Proportional to 4,481.28, 6,716.16 and 1,880.64

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Solution

The fourth proportional to 4,481.28, 6,716.16 and 1,880.64 is: 2,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.28 : 6,716.16 = 1,880.64 : x
  2. Step 2: Convert to fraction form
    4,481.28/6,716.16 = 1,880.64/x
  3. Step 3: Cross multiply
    4,481.28x = 6,716.16 × 1,880.64
  4. Step 4: Simplify right side
    4,481.28x = 12,630,679.14
  5. Step 5: Solve for x
    x = 12,630,679.14/4,481.28
  6. Step 6: Final answer
    x = 2,818.54

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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.