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Finding the Fourth Proportional to 3,556.58, 4,909.74 and 2,064.21

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Solution

The fourth proportional to 3,556.58, 4,909.74 and 2,064.21 is: 2,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.58 : 4,909.74 = 2,064.21 : x
  2. Step 2: Convert to fraction form
    3,556.58/4,909.74 = 2,064.21/x
  3. Step 3: Cross multiply
    3,556.58x = 4,909.74 × 2,064.21
  4. Step 4: Simplify right side
    3,556.58x = 10,134,745.43
  5. Step 5: Solve for x
    x = 10,134,745.43/3,556.58
  6. Step 6: Final answer
    x = 2,849.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.