Home / 7,819.64-11,729.04-1,975.92

Finding the Fourth Proportional to 7,819.64, 11,729.04 and 1,975.92

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Solution

The fourth proportional to 7,819.64, 11,729.04 and 1,975.92 is: 2,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.64 : 11,729.04 = 1,975.92 : x
  2. Step 2: Convert to fraction form
    7,819.64/11,729.04 = 1,975.92/x
  3. Step 3: Cross multiply
    7,819.64x = 11,729.04 × 1,975.92
  4. Step 4: Simplify right side
    7,819.64x = 23,175,644.72
  5. Step 5: Solve for x
    x = 23,175,644.72/7,819.64
  6. Step 6: Final answer
    x = 2,963.77

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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.