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Finding the Fourth Proportional to 6,322.88, 8,725.56 and 3,490.44

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Solution

The fourth proportional to 6,322.88, 8,725.56 and 3,490.44 is: 4,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,322.88 : 8,725.56 = 3,490.44 : x
  2. Step 2: Convert to fraction form
    6,322.88/8,725.56 = 3,490.44/x
  3. Step 3: Cross multiply
    6,322.88x = 8,725.56 × 3,490.44
  4. Step 4: Simplify right side
    6,322.88x = 30,456,043.65
  5. Step 5: Solve for x
    x = 30,456,043.65/6,322.88
  6. Step 6: Final answer
    x = 4,816.80

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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.