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Finding the Fourth Proportional to 6,372.80, 8,798.79 and 3,983.70

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Solution

The fourth proportional to 6,372.80, 8,798.79 and 3,983.70 is: 5,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.80 : 8,798.79 = 3,983.70 : x
  2. Step 2: Convert to fraction form
    6,372.80/8,798.79 = 3,983.70/x
  3. Step 3: Cross multiply
    6,372.80x = 8,798.79 × 3,983.70
  4. Step 4: Simplify right side
    6,372.80x = 35,051,739.72
  5. Step 5: Solve for x
    x = 35,051,739.72/6,372.80
  6. Step 6: Final answer
    x = 5,500.21

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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.