Home / 3,458.09-4,771.98-1,965.80

Finding the Fourth Proportional to 3,458.09, 4,771.98 and 1,965.80

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Solution

The fourth proportional to 3,458.09, 4,771.98 and 1,965.80 is: 2,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.09 : 4,771.98 = 1,965.80 : x
  2. Step 2: Convert to fraction form
    3,458.09/4,771.98 = 1,965.80/x
  3. Step 3: Cross multiply
    3,458.09x = 4,771.98 × 1,965.80
  4. Step 4: Simplify right side
    3,458.09x = 9,380,770.21
  5. Step 5: Solve for x
    x = 9,380,770.21/3,458.09
  6. Step 6: Final answer
    x = 2,712.70

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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.