Home / 5,474.28-8,205.75-2,185.95

Finding the Fourth Proportional to 5,474.28, 8,205.75 and 2,185.95

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Solution

The fourth proportional to 5,474.28, 8,205.75 and 2,185.95 is: 3,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.28 : 8,205.75 = 2,185.95 : x
  2. Step 2: Convert to fraction form
    5,474.28/8,205.75 = 2,185.95/x
  3. Step 3: Cross multiply
    5,474.28x = 8,205.75 × 2,185.95
  4. Step 4: Simplify right side
    5,474.28x = 17,937,359.21
  5. Step 5: Solve for x
    x = 17,937,359.21/5,474.28
  6. Step 6: Final answer
    x = 3,276.66

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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.