Home / 2,872.75-4,308.68-1,371.38

Finding the Fourth Proportional to 2,872.75, 4,308.68 and 1,371.38

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Solution

The fourth proportional to 2,872.75, 4,308.68 and 1,371.38 is: 2,056.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.75 : 4,308.68 = 1,371.38 : x
  2. Step 2: Convert to fraction form
    2,872.75/4,308.68 = 1,371.38/x
  3. Step 3: Cross multiply
    2,872.75x = 4,308.68 × 1,371.38
  4. Step 4: Simplify right side
    2,872.75x = 5,908,851.78
  5. Step 5: Solve for x
    x = 5,908,851.78/2,872.75
  6. Step 6: Final answer
    x = 2,056.86

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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.