Home / 3,622.09-5,431.30-1,770.43

Finding the Fourth Proportional to 3,622.09, 5,431.30 and 1,770.43

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Solution

The fourth proportional to 3,622.09, 5,431.30 and 1,770.43 is: 2,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.09 : 5,431.30 = 1,770.43 : x
  2. Step 2: Convert to fraction form
    3,622.09/5,431.30 = 1,770.43/x
  3. Step 3: Cross multiply
    3,622.09x = 5,431.30 × 1,770.43
  4. Step 4: Simplify right side
    3,622.09x = 9,615,736.46
  5. Step 5: Solve for x
    x = 9,615,736.46/3,622.09
  6. Step 6: Final answer
    x = 2,654.75

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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.