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Finding the Fourth Proportional to 6,388.83, 9,583.25 and 1,771.83

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Solution

The fourth proportional to 6,388.83, 9,583.25 and 1,771.83 is: 2,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.83 : 9,583.25 = 1,771.83 : x
  2. Step 2: Convert to fraction form
    6,388.83/9,583.25 = 1,771.83/x
  3. Step 3: Cross multiply
    6,388.83x = 9,583.25 × 1,771.83
  4. Step 4: Simplify right side
    6,388.83x = 16,979,880.99
  5. Step 5: Solve for x
    x = 16,979,880.99/6,388.83
  6. Step 6: Final answer
    x = 2,657.75

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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.