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Finding the Fourth Proportional to 5,272.99, 7,893.07 and 3,321.09

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Solution

The fourth proportional to 5,272.99, 7,893.07 and 3,321.09 is: 4,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.99 : 7,893.07 = 3,321.09 : x
  2. Step 2: Convert to fraction form
    5,272.99/7,893.07 = 3,321.09/x
  3. Step 3: Cross multiply
    5,272.99x = 7,893.07 × 3,321.09
  4. Step 4: Simplify right side
    5,272.99x = 26,213,595.85
  5. Step 5: Solve for x
    x = 26,213,595.85/5,272.99
  6. Step 6: Final answer
    x = 4,971.30

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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.