Home / 5,175.48-7,763.22-1,279.96

Finding the Fourth Proportional to 5,175.48, 7,763.22 and 1,279.96

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Solution

The fourth proportional to 5,175.48, 7,763.22 and 1,279.96 is: 1,919.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.48 : 7,763.22 = 1,279.96 : x
  2. Step 2: Convert to fraction form
    5,175.48/7,763.22 = 1,279.96/x
  3. Step 3: Cross multiply
    5,175.48x = 7,763.22 × 1,279.96
  4. Step 4: Simplify right side
    5,175.48x = 9,936,611.07
  5. Step 5: Solve for x
    x = 9,936,611.07/5,175.48
  6. Step 6: Final answer
    x = 1,919.94

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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.