Home / 2,712.68-4,069.15-1,324.37

Finding the Fourth Proportional to 2,712.68, 4,069.15 and 1,324.37

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Solution

The fourth proportional to 2,712.68, 4,069.15 and 1,324.37 is: 1,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.68 : 4,069.15 = 1,324.37 : x
  2. Step 2: Convert to fraction form
    2,712.68/4,069.15 = 1,324.37/x
  3. Step 3: Cross multiply
    2,712.68x = 4,069.15 × 1,324.37
  4. Step 4: Simplify right side
    2,712.68x = 5,389,060.19
  5. Step 5: Solve for x
    x = 5,389,060.19/2,712.68
  6. Step 6: Final answer
    x = 1,986.62

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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.