Home / 5,255.69-7,872.98-2,615.23

Finding the Fourth Proportional to 5,255.69, 7,872.98 and 2,615.23

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Solution

The fourth proportional to 5,255.69, 7,872.98 and 2,615.23 is: 3,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.69 : 7,872.98 = 2,615.23 : x
  2. Step 2: Convert to fraction form
    5,255.69/7,872.98 = 2,615.23/x
  3. Step 3: Cross multiply
    5,255.69x = 7,872.98 × 2,615.23
  4. Step 4: Simplify right side
    5,255.69x = 20,589,620.73
  5. Step 5: Solve for x
    x = 20,589,620.73/5,255.69
  6. Step 6: Final answer
    x = 3,917.58

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1.5x scale

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.