Home / 5,320.96-7,983.60-5,179.84

Finding the Fourth Proportional to 5,320.96, 7,983.60 and 5,179.84

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Solution

The fourth proportional to 5,320.96, 7,983.60 and 5,179.84 is: 7,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.96 : 7,983.60 = 5,179.84 : x
  2. Step 2: Convert to fraction form
    5,320.96/7,983.60 = 5,179.84/x
  3. Step 3: Cross multiply
    5,320.96x = 7,983.60 × 5,179.84
  4. Step 4: Simplify right side
    5,320.96x = 41,353,770.62
  5. Step 5: Solve for x
    x = 41,353,770.62/5,320.96
  6. Step 6: Final answer
    x = 7,771.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.