Home / 4,977.21-7,468.43-2,205.79

Finding the Fourth Proportional to 4,977.21, 7,468.43 and 2,205.79

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Solution

The fourth proportional to 4,977.21, 7,468.43 and 2,205.79 is: 3,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.21 : 7,468.43 = 2,205.79 : x
  2. Step 2: Convert to fraction form
    4,977.21/7,468.43 = 2,205.79/x
  3. Step 3: Cross multiply
    4,977.21x = 7,468.43 × 2,205.79
  4. Step 4: Simplify right side
    4,977.21x = 16,473,788.21
  5. Step 5: Solve for x
    x = 16,473,788.21/4,977.21
  6. Step 6: Final answer
    x = 3,309.84

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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.