Home / 6,977.87-9,629.45-3,791.15

Finding the Fourth Proportional to 6,977.87, 9,629.45 and 3,791.15

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Solution

The fourth proportional to 6,977.87, 9,629.45 and 3,791.15 is: 5,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,977.87 : 9,629.45 = 3,791.15 : x
  2. Step 2: Convert to fraction form
    6,977.87/9,629.45 = 3,791.15/x
  3. Step 3: Cross multiply
    6,977.87x = 9,629.45 × 3,791.15
  4. Step 4: Simplify right side
    6,977.87x = 36,506,622.26
  5. Step 5: Solve for x
    x = 36,506,622.26/6,977.87
  6. Step 6: Final answer
    x = 5,231.78

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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.