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Finding the Fourth Proportional to 3,775.44, 5,661.24 and 1,722

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Solution

The fourth proportional to 3,775.44, 5,661.24 and 1,722 is: 2,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.44 : 5,661.24 = 1,722 : x
  2. Step 2: Convert to fraction form
    3,775.44/5,661.24 = 1,722/x
  3. Step 3: Cross multiply
    3,775.44x = 5,661.24 × 1,722
  4. Step 4: Simplify right side
    3,775.44x = 9,748,655.28
  5. Step 5: Solve for x
    x = 9,748,655.28/3,775.44
  6. Step 6: Final answer
    x = 2,582.12

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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.