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Finding the Fourth Proportional to 3,777.66, 5,661.23 and 2,218.68

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Solution

The fourth proportional to 3,777.66, 5,661.23 and 2,218.68 is: 3,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.66 : 5,661.23 = 2,218.68 : x
  2. Step 2: Convert to fraction form
    3,777.66/5,661.23 = 2,218.68/x
  3. Step 3: Cross multiply
    3,777.66x = 5,661.23 × 2,218.68
  4. Step 4: Simplify right side
    3,777.66x = 12,560,446.68
  5. Step 5: Solve for x
    x = 12,560,446.68/3,777.66
  6. Step 6: Final answer
    x = 3,324.93

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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.