Home / 2,812.10-3,882-1,632.94

Finding the Fourth Proportional to 2,812.10, 3,882 and 1,632.94

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Solution

The fourth proportional to 2,812.10, 3,882 and 1,632.94 is: 2,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.10 : 3,882 = 1,632.94 : x
  2. Step 2: Convert to fraction form
    2,812.10/3,882 = 1,632.94/x
  3. Step 3: Cross multiply
    2,812.10x = 3,882 × 1,632.94
  4. Step 4: Simplify right side
    2,812.10x = 6,339,063.38
  5. Step 5: Solve for x
    x = 6,339,063.38/2,812.10
  6. Step 6: Final answer
    x = 2,254.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.