Home / 3,815.65-5,723.12-1,474.25

Finding the Fourth Proportional to 3,815.65, 5,723.12 and 1,474.25

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Solution

The fourth proportional to 3,815.65, 5,723.12 and 1,474.25 is: 2,211.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.65 : 5,723.12 = 1,474.25 : x
  2. Step 2: Convert to fraction form
    3,815.65/5,723.12 = 1,474.25/x
  3. Step 3: Cross multiply
    3,815.65x = 5,723.12 × 1,474.25
  4. Step 4: Simplify right side
    3,815.65x = 8,437,284.73
  5. Step 5: Solve for x
    x = 8,437,284.73/3,815.65
  6. Step 6: Final answer
    x = 2,211.23

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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.