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Finding the Fourth Proportional to 6,383.55, 8,809.21 and 3,589.05

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Solution

The fourth proportional to 6,383.55, 8,809.21 and 3,589.05 is: 4,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,383.55 : 8,809.21 = 3,589.05 : x
  2. Step 2: Convert to fraction form
    6,383.55/8,809.21 = 3,589.05/x
  3. Step 3: Cross multiply
    6,383.55x = 8,809.21 × 3,589.05
  4. Step 4: Simplify right side
    6,383.55x = 31,616,695.15
  5. Step 5: Solve for x
    x = 31,616,695.15/6,383.55
  6. Step 6: Final answer
    x = 4,952.84

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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.