Home / 5,139.92-7,702.44-2,797.94

Finding the Fourth Proportional to 5,139.92, 7,702.44 and 2,797.94

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Solution

The fourth proportional to 5,139.92, 7,702.44 and 2,797.94 is: 4,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.92 : 7,702.44 = 2,797.94 : x
  2. Step 2: Convert to fraction form
    5,139.92/7,702.44 = 2,797.94/x
  3. Step 3: Cross multiply
    5,139.92x = 7,702.44 × 2,797.94
  4. Step 4: Simplify right side
    5,139.92x = 21,550,964.97
  5. Step 5: Solve for x
    x = 21,550,964.97/5,139.92
  6. Step 6: Final answer
    x = 4,192.86

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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.