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Finding the Fourth Proportional to 6,305.58, 8,704.38 and 4,489.78

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Solution

The fourth proportional to 6,305.58, 8,704.38 and 4,489.78 is: 6,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,305.58 : 8,704.38 = 4,489.78 : x
  2. Step 2: Convert to fraction form
    6,305.58/8,704.38 = 4,489.78/x
  3. Step 3: Cross multiply
    6,305.58x = 8,704.38 × 4,489.78
  4. Step 4: Simplify right side
    6,305.58x = 39,080,751.24
  5. Step 5: Solve for x
    x = 39,080,751.24/6,305.58
  6. Step 6: Final answer
    x = 6,197.80

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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.