Home / 2,799.48-3,863.08-1,679.86

Finding the Fourth Proportional to 2,799.48, 3,863.08 and 1,679.86

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Solution

The fourth proportional to 2,799.48, 3,863.08 and 1,679.86 is: 2,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.48 : 3,863.08 = 1,679.86 : x
  2. Step 2: Convert to fraction form
    2,799.48/3,863.08 = 1,679.86/x
  3. Step 3: Cross multiply
    2,799.48x = 3,863.08 × 1,679.86
  4. Step 4: Simplify right side
    2,799.48x = 6,489,433.57
  5. Step 5: Solve for x
    x = 6,489,433.57/2,799.48
  6. Step 6: Final answer
    x = 2,318.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.