Home / 5,217.76-7,829.64-1,933.12

Finding the Fourth Proportional to 5,217.76, 7,829.64 and 1,933.12

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Solution

The fourth proportional to 5,217.76, 7,829.64 and 1,933.12 is: 2,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.76 : 7,829.64 = 1,933.12 : x
  2. Step 2: Convert to fraction form
    5,217.76/7,829.64 = 1,933.12/x
  3. Step 3: Cross multiply
    5,217.76x = 7,829.64 × 1,933.12
  4. Step 4: Simplify right side
    5,217.76x = 15,135,633.68
  5. Step 5: Solve for x
    x = 15,135,633.68/5,217.76
  6. Step 6: Final answer
    x = 2,900.79

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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.