Home / 5,605.82-8,400.90-4,217.54

Finding the Fourth Proportional to 5,605.82, 8,400.90 and 4,217.54

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Solution

The fourth proportional to 5,605.82, 8,400.90 and 4,217.54 is: 6,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.82 : 8,400.90 = 4,217.54 : x
  2. Step 2: Convert to fraction form
    5,605.82/8,400.90 = 4,217.54/x
  3. Step 3: Cross multiply
    5,605.82x = 8,400.90 × 4,217.54
  4. Step 4: Simplify right side
    5,605.82x = 35,431,131.79
  5. Step 5: Solve for x
    x = 35,431,131.79/5,605.82
  6. Step 6: Final answer
    x = 6,320.42

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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.