Home / 2,770.80-4,161.96-2,197.68

Finding the Fourth Proportional to 2,770.80, 4,161.96 and 2,197.68

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Solution

The fourth proportional to 2,770.80, 4,161.96 and 2,197.68 is: 3,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.80 : 4,161.96 = 2,197.68 : x
  2. Step 2: Convert to fraction form
    2,770.80/4,161.96 = 2,197.68/x
  3. Step 3: Cross multiply
    2,770.80x = 4,161.96 × 2,197.68
  4. Step 4: Simplify right side
    2,770.80x = 9,146,656.25
  5. Step 5: Solve for x
    x = 9,146,656.25/2,770.80
  6. Step 6: Final answer
    x = 3,301.09

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1.5x scale

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.