Home / 6,121.58-9,185.40-3,491.10

Finding the Fourth Proportional to 6,121.58, 9,185.40 and 3,491.10

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Solution

The fourth proportional to 6,121.58, 9,185.40 and 3,491.10 is: 5,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.58 : 9,185.40 = 3,491.10 : x
  2. Step 2: Convert to fraction form
    6,121.58/9,185.40 = 3,491.10/x
  3. Step 3: Cross multiply
    6,121.58x = 9,185.40 × 3,491.10
  4. Step 4: Simplify right side
    6,121.58x = 32,067,149.94
  5. Step 5: Solve for x
    x = 32,067,149.94/6,121.58
  6. Step 6: Final answer
    x = 5,238.38

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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.