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Finding the Fourth Proportional to 6,516.75, 9,788.25 and 3,889.39

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Solution

The fourth proportional to 6,516.75, 9,788.25 and 3,889.39 is: 5,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.75 : 9,788.25 = 3,889.39 : x
  2. Step 2: Convert to fraction form
    6,516.75/9,788.25 = 3,889.39/x
  3. Step 3: Cross multiply
    6,516.75x = 9,788.25 × 3,889.39
  4. Step 4: Simplify right side
    6,516.75x = 38,070,321.67
  5. Step 5: Solve for x
    x = 38,070,321.67/6,516.75
  6. Step 6: Final answer
    x = 5,841.92

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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.