Home / 3,186.06-4,778.47-1,107.42

Finding the Fourth Proportional to 3,186.06, 4,778.47 and 1,107.42

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Solution

The fourth proportional to 3,186.06, 4,778.47 and 1,107.42 is: 1,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.06 : 4,778.47 = 1,107.42 : x
  2. Step 2: Convert to fraction form
    3,186.06/4,778.47 = 1,107.42/x
  3. Step 3: Cross multiply
    3,186.06x = 4,778.47 × 1,107.42
  4. Step 4: Simplify right side
    3,186.06x = 5,291,773.25
  5. Step 5: Solve for x
    x = 5,291,773.25/3,186.06
  6. Step 6: Final answer
    x = 1,660.91

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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.