Home / 3,431.89-4,734.37-2,486.15

Finding the Fourth Proportional to 3,431.89, 4,734.37 and 2,486.15

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Solution

The fourth proportional to 3,431.89, 4,734.37 and 2,486.15 is: 3,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.89 : 4,734.37 = 2,486.15 : x
  2. Step 2: Convert to fraction form
    3,431.89/4,734.37 = 2,486.15/x
  3. Step 3: Cross multiply
    3,431.89x = 4,734.37 × 2,486.15
  4. Step 4: Simplify right side
    3,431.89x = 11,770,317.87
  5. Step 5: Solve for x
    x = 11,770,317.87/3,431.89
  6. Step 6: Final answer
    x = 3,429.69

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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.