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Finding the Fourth Proportional to 6,220.56, 8,584.10 and 3,387.94

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Solution

The fourth proportional to 6,220.56, 8,584.10 and 3,387.94 is: 4,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.56 : 8,584.10 = 3,387.94 : x
  2. Step 2: Convert to fraction form
    6,220.56/8,584.10 = 3,387.94/x
  3. Step 3: Cross multiply
    6,220.56x = 8,584.10 × 3,387.94
  4. Step 4: Simplify right side
    6,220.56x = 29,082,415.75
  5. Step 5: Solve for x
    x = 29,082,415.75/6,220.56
  6. Step 6: Final answer
    x = 4,675.21

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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.