Home / 7,819.31-11,729.05-1,975.93

Finding the Fourth Proportional to 7,819.31, 11,729.05 and 1,975.93

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Solution

The fourth proportional to 7,819.31, 11,729.05 and 1,975.93 is: 2,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.31 : 11,729.05 = 1,975.93 : x
  2. Step 2: Convert to fraction form
    7,819.31/11,729.05 = 1,975.93/x
  3. Step 3: Cross multiply
    7,819.31x = 11,729.05 × 1,975.93
  4. Step 4: Simplify right side
    7,819.31x = 23,175,747.50
  5. Step 5: Solve for x
    x = 23,175,747.50/7,819.31
  6. Step 6: Final answer
    x = 2,963.91

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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.