Home / 5,218.86-7,202.42-3,230.57

Finding the Fourth Proportional to 5,218.86, 7,202.42 and 3,230.57

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Solution

The fourth proportional to 5,218.86, 7,202.42 and 3,230.57 is: 4,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.86 : 7,202.42 = 3,230.57 : x
  2. Step 2: Convert to fraction form
    5,218.86/7,202.42 = 3,230.57/x
  3. Step 3: Cross multiply
    5,218.86x = 7,202.42 × 3,230.57
  4. Step 4: Simplify right side
    5,218.86x = 23,267,895.43
  5. Step 5: Solve for x
    x = 23,267,895.43/5,218.86
  6. Step 6: Final answer
    x = 4,458.42

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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.