Home / 2,813.05-4,220.67-1,251.97

Finding the Fourth Proportional to 2,813.05, 4,220.67 and 1,251.97

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Solution

The fourth proportional to 2,813.05, 4,220.67 and 1,251.97 is: 1,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.05 : 4,220.67 = 1,251.97 : x
  2. Step 2: Convert to fraction form
    2,813.05/4,220.67 = 1,251.97/x
  3. Step 3: Cross multiply
    2,813.05x = 4,220.67 × 1,251.97
  4. Step 4: Simplify right side
    2,813.05x = 5,284,152.22
  5. Step 5: Solve for x
    x = 5,284,152.22/2,813.05
  6. Step 6: Final answer
    x = 1,878.44

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1.5x scale

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.