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Finding the Fourth Proportional to 3,779.70, 5,662.26 and 1,833.28

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Solution

The fourth proportional to 3,779.70, 5,662.26 and 1,833.28 is: 2,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.70 : 5,662.26 = 1,833.28 : x
  2. Step 2: Convert to fraction form
    3,779.70/5,662.26 = 1,833.28/x
  3. Step 3: Cross multiply
    3,779.70x = 5,662.26 × 1,833.28
  4. Step 4: Simplify right side
    3,779.70x = 10,380,508.01
  5. Step 5: Solve for x
    x = 10,380,508.01/3,779.70
  6. Step 6: Final answer
    x = 2,746.38

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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.