Home / 1,679.73-2,519.52-1,271.08

Finding the Fourth Proportional to 1,679.73, 2,519.52 and 1,271.08

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Solution

The fourth proportional to 1,679.73, 2,519.52 and 1,271.08 is: 1,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.73 : 2,519.52 = 1,271.08 : x
  2. Step 2: Convert to fraction form
    1,679.73/2,519.52 = 1,271.08/x
  3. Step 3: Cross multiply
    1,679.73x = 2,519.52 × 1,271.08
  4. Step 4: Simplify right side
    1,679.73x = 3,202,511.48
  5. Step 5: Solve for x
    x = 3,202,511.48/1,679.73
  6. Step 6: Final answer
    x = 1,906.56

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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.