Home / 2,712.91-4,069.36-1,251.26

Finding the Fourth Proportional to 2,712.91, 4,069.36 and 1,251.26

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Solution

The fourth proportional to 2,712.91, 4,069.36 and 1,251.26 is: 1,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.91 : 4,069.36 = 1,251.26 : x
  2. Step 2: Convert to fraction form
    2,712.91/4,069.36 = 1,251.26/x
  3. Step 3: Cross multiply
    2,712.91x = 4,069.36 × 1,251.26
  4. Step 4: Simplify right side
    2,712.91x = 5,091,821.14
  5. Step 5: Solve for x
    x = 5,091,821.14/2,712.91
  6. Step 6: Final answer
    x = 1,876.89

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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.