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Finding the Fourth Proportional to 1,777.27, 2,666.22 and 544.66

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Solution

The fourth proportional to 1,777.27, 2,666.22 and 544.66 is: 817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.27 : 2,666.22 = 544.66 : x
  2. Step 2: Convert to fraction form
    1,777.27/2,666.22 = 544.66/x
  3. Step 3: Cross multiply
    1,777.27x = 2,666.22 × 544.66
  4. Step 4: Simplify right side
    1,777.27x = 1,452,183.39
  5. Step 5: Solve for x
    x = 1,452,183.39/1,777.27
  6. Step 6: Final answer
    x = 817.09

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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.