Home / 6,785.12-9,366-3,991.52

Finding the Fourth Proportional to 6,785.12, 9,366 and 3,991.52

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Solution

The fourth proportional to 6,785.12, 9,366 and 3,991.52 is: 5,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,785.12 : 9,366 = 3,991.52 : x
  2. Step 2: Convert to fraction form
    6,785.12/9,366 = 3,991.52/x
  3. Step 3: Cross multiply
    6,785.12x = 9,366 × 3,991.52
  4. Step 4: Simplify right side
    6,785.12x = 37,384,576.32
  5. Step 5: Solve for x
    x = 37,384,576.32/6,785.12
  6. Step 6: Final answer
    x = 5,509.79

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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.