Home / 5,205.10-7,811.69-3,634.90

Finding the Fourth Proportional to 5,205.10, 7,811.69 and 3,634.90

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Solution

The fourth proportional to 5,205.10, 7,811.69 and 3,634.90 is: 5,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.10 : 7,811.69 = 3,634.90 : x
  2. Step 2: Convert to fraction form
    5,205.10/7,811.69 = 3,634.90/x
  3. Step 3: Cross multiply
    5,205.10x = 7,811.69 × 3,634.90
  4. Step 4: Simplify right side
    5,205.10x = 28,394,711.98
  5. Step 5: Solve for x
    x = 28,394,711.98/5,205.10
  6. Step 6: Final answer
    x = 5,455.17

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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.