Home / 5,245.07-7,865.49-2,124.44

Finding the Fourth Proportional to 5,245.07, 7,865.49 and 2,124.44

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Solution

The fourth proportional to 5,245.07, 7,865.49 and 2,124.44 is: 3,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.07 : 7,865.49 = 2,124.44 : x
  2. Step 2: Convert to fraction form
    5,245.07/7,865.49 = 2,124.44/x
  3. Step 3: Cross multiply
    5,245.07x = 7,865.49 × 2,124.44
  4. Step 4: Simplify right side
    5,245.07x = 16,709,761.58
  5. Step 5: Solve for x
    x = 16,709,761.58/5,245.07
  6. Step 6: Final answer
    x = 3,185.80

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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.