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Finding the Fourth Proportional to 5,418.99, 7,481.18 and 3,404.50

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Solution

The fourth proportional to 5,418.99, 7,481.18 and 3,404.50 is: 4,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.99 : 7,481.18 = 3,404.50 : x
  2. Step 2: Convert to fraction form
    5,418.99/7,481.18 = 3,404.50/x
  3. Step 3: Cross multiply
    5,418.99x = 7,481.18 × 3,404.50
  4. Step 4: Simplify right side
    5,418.99x = 25,469,677.31
  5. Step 5: Solve for x
    x = 25,469,677.31/5,418.99
  6. Step 6: Final answer
    x = 4,700.08

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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.