Home / 5,137.20-7,087.44-3,369.78

Finding the Fourth Proportional to 5,137.20, 7,087.44 and 3,369.78

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Solution

The fourth proportional to 5,137.20, 7,087.44 and 3,369.78 is: 4,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.20 : 7,087.44 = 3,369.78 : x
  2. Step 2: Convert to fraction form
    5,137.20/7,087.44 = 3,369.78/x
  3. Step 3: Cross multiply
    5,137.20x = 7,087.44 × 3,369.78
  4. Step 4: Simplify right side
    5,137.20x = 23,883,113.56
  5. Step 5: Solve for x
    x = 23,883,113.56/5,137.20
  6. Step 6: Final answer
    x = 4,649.05

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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.