Home / 5,178.69-7,141.62-3,481.05

Finding the Fourth Proportional to 5,178.69, 7,141.62 and 3,481.05

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Solution

The fourth proportional to 5,178.69, 7,141.62 and 3,481.05 is: 4,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.69 : 7,141.62 = 3,481.05 : x
  2. Step 2: Convert to fraction form
    5,178.69/7,141.62 = 3,481.05/x
  3. Step 3: Cross multiply
    5,178.69x = 7,141.62 × 3,481.05
  4. Step 4: Simplify right side
    5,178.69x = 24,860,336.30
  5. Step 5: Solve for x
    x = 24,860,336.30/5,178.69
  6. Step 6: Final answer
    x = 4,800.51

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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.