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Finding the Fourth Proportional to 3,779.22, 5,645 and 3,710

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Solution

The fourth proportional to 3,779.22, 5,645 and 3,710 is: 5,541.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.22 : 5,645 = 3,710 : x
  2. Step 2: Convert to fraction form
    3,779.22/5,645 = 3,710/x
  3. Step 3: Cross multiply
    3,779.22x = 5,645 × 3,710
  4. Step 4: Simplify right side
    3,779.22x = 20,942,950
  5. Step 5: Solve for x
    x = 20,942,950/3,779.22
  6. Step 6: Final answer
    x = 5,541.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.