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Finding the Fourth Proportional to 6,323.28, 8,725.20 and 3,528.88

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Solution

The fourth proportional to 6,323.28, 8,725.20 and 3,528.88 is: 4,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,323.28 : 8,725.20 = 3,528.88 : x
  2. Step 2: Convert to fraction form
    6,323.28/8,725.20 = 3,528.88/x
  3. Step 3: Cross multiply
    6,323.28x = 8,725.20 × 3,528.88
  4. Step 4: Simplify right side
    6,323.28x = 30,790,183.78
  5. Step 5: Solve for x
    x = 30,790,183.78/6,323.28
  6. Step 6: Final answer
    x = 4,869.34

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1.5x scale

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.