Home / 2,712.79-4,069.86-1,252.96

Finding the Fourth Proportional to 2,712.79, 4,069.86 and 1,252.96

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Solution

The fourth proportional to 2,712.79, 4,069.86 and 1,252.96 is: 1,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.79 : 4,069.86 = 1,252.96 : x
  2. Step 2: Convert to fraction form
    2,712.79/4,069.86 = 1,252.96/x
  3. Step 3: Cross multiply
    2,712.79x = 4,069.86 × 1,252.96
  4. Step 4: Simplify right side
    2,712.79x = 5,099,371.79
  5. Step 5: Solve for x
    x = 5,099,371.79/2,712.79
  6. Step 6: Final answer
    x = 1,879.75

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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.