Home / 7,819.80-10,791.36-4,283

Finding the Fourth Proportional to 7,819.80, 10,791.36 and 4,283

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Solution

The fourth proportional to 7,819.80, 10,791.36 and 4,283 is: 5,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.80 : 10,791.36 = 4,283 : x
  2. Step 2: Convert to fraction form
    7,819.80/10,791.36 = 4,283/x
  3. Step 3: Cross multiply
    7,819.80x = 10,791.36 × 4,283
  4. Step 4: Simplify right side
    7,819.80x = 46,219,394.88
  5. Step 5: Solve for x
    x = 46,219,394.88/7,819.80
  6. Step 6: Final answer
    x = 5,910.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.