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Finding the Fourth Proportional to 6,993.52, 10,480.43 and 3,480.21

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Solution

The fourth proportional to 6,993.52, 10,480.43 and 3,480.21 is: 5,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,993.52 : 10,480.43 = 3,480.21 : x
  2. Step 2: Convert to fraction form
    6,993.52/10,480.43 = 3,480.21/x
  3. Step 3: Cross multiply
    6,993.52x = 10,480.43 × 3,480.21
  4. Step 4: Simplify right side
    6,993.52x = 36,474,105.99
  5. Step 5: Solve for x
    x = 36,474,105.99/6,993.52
  6. Step 6: Final answer
    x = 5,215.42

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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.