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Finding the Fourth Proportional to 5,176.94, 7,144.22 and 2,819.17

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Solution

The fourth proportional to 5,176.94, 7,144.22 and 2,819.17 is: 3,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.94 : 7,144.22 = 2,819.17 : x
  2. Step 2: Convert to fraction form
    5,176.94/7,144.22 = 2,819.17/x
  3. Step 3: Cross multiply
    5,176.94x = 7,144.22 × 2,819.17
  4. Step 4: Simplify right side
    5,176.94x = 20,140,720.88
  5. Step 5: Solve for x
    x = 20,140,720.88/5,176.94
  6. Step 6: Final answer
    x = 3,890.47

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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.