Home / 5,179.50-7,148.39-3,083.63

Finding the Fourth Proportional to 5,179.50, 7,148.39 and 3,083.63

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Solution

The fourth proportional to 5,179.50, 7,148.39 and 3,083.63 is: 4,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.50 : 7,148.39 = 3,083.63 : x
  2. Step 2: Convert to fraction form
    5,179.50/7,148.39 = 3,083.63/x
  3. Step 3: Cross multiply
    5,179.50x = 7,148.39 × 3,083.63
  4. Step 4: Simplify right side
    5,179.50x = 22,042,938.70
  5. Step 5: Solve for x
    x = 22,042,938.70/5,179.50
  6. Step 6: Final answer
    x = 4,255.80

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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.