Home / 5,122.64-7,684.92-1,659.44

Finding the Fourth Proportional to 5,122.64, 7,684.92 and 1,659.44

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Solution

The fourth proportional to 5,122.64, 7,684.92 and 1,659.44 is: 2,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.64 : 7,684.92 = 1,659.44 : x
  2. Step 2: Convert to fraction form
    5,122.64/7,684.92 = 1,659.44/x
  3. Step 3: Cross multiply
    5,122.64x = 7,684.92 × 1,659.44
  4. Step 4: Simplify right side
    5,122.64x = 12,752,663.64
  5. Step 5: Solve for x
    x = 12,752,663.64/5,122.64
  6. Step 6: Final answer
    x = 2,489.47

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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.