Home / 2,285.62-3,419.79-2,147.38

Finding the Fourth Proportional to 2,285.62, 3,419.79 and 2,147.38

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Solution

The fourth proportional to 2,285.62, 3,419.79 and 2,147.38 is: 3,212.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.62 : 3,419.79 = 2,147.38 : x
  2. Step 2: Convert to fraction form
    2,285.62/3,419.79 = 2,147.38/x
  3. Step 3: Cross multiply
    2,285.62x = 3,419.79 × 2,147.38
  4. Step 4: Simplify right side
    2,285.62x = 7,343,588.65
  5. Step 5: Solve for x
    x = 7,343,588.65/2,285.62
  6. Step 6: Final answer
    x = 3,212.95

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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.