Home / 5,421.82-8,135.46-2,137.27

Finding the Fourth Proportional to 5,421.82, 8,135.46 and 2,137.27

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Solution

The fourth proportional to 5,421.82, 8,135.46 and 2,137.27 is: 3,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.82 : 8,135.46 = 2,137.27 : x
  2. Step 2: Convert to fraction form
    5,421.82/8,135.46 = 2,137.27/x
  3. Step 3: Cross multiply
    5,421.82x = 8,135.46 × 2,137.27
  4. Step 4: Simplify right side
    5,421.82x = 17,387,674.59
  5. Step 5: Solve for x
    x = 17,387,674.59/5,421.82
  6. Step 6: Final answer
    x = 3,206.98

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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.