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Finding the Fourth Proportional to 5,469.90, 8,204.85 and 4,376.40

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Solution

The fourth proportional to 5,469.90, 8,204.85 and 4,376.40 is: 6,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469.90 : 8,204.85 = 4,376.40 : x
  2. Step 2: Convert to fraction form
    5,469.90/8,204.85 = 4,376.40/x
  3. Step 3: Cross multiply
    5,469.90x = 8,204.85 × 4,376.40
  4. Step 4: Simplify right side
    5,469.90x = 35,907,705.54
  5. Step 5: Solve for x
    x = 35,907,705.54/5,469.90
  6. Step 6: Final answer
    x = 6,564.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.