Home / 5,217.15-7,199.67-2,859.29

Finding the Fourth Proportional to 5,217.15, 7,199.67 and 2,859.29

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Solution

The fourth proportional to 5,217.15, 7,199.67 and 2,859.29 is: 3,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.15 : 7,199.67 = 2,859.29 : x
  2. Step 2: Convert to fraction form
    5,217.15/7,199.67 = 2,859.29/x
  3. Step 3: Cross multiply
    5,217.15x = 7,199.67 × 2,859.29
  4. Step 4: Simplify right side
    5,217.15x = 20,585,944.43
  5. Step 5: Solve for x
    x = 20,585,944.43/5,217.15
  6. Step 6: Final answer
    x = 3,945.82

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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.