Home / 4,131.57-6,198.62-1,320.33

Finding the Fourth Proportional to 4,131.57, 6,198.62 and 1,320.33

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Solution

The fourth proportional to 4,131.57, 6,198.62 and 1,320.33 is: 1,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.57 : 6,198.62 = 1,320.33 : x
  2. Step 2: Convert to fraction form
    4,131.57/6,198.62 = 1,320.33/x
  3. Step 3: Cross multiply
    4,131.57x = 6,198.62 × 1,320.33
  4. Step 4: Simplify right side
    4,131.57x = 8,184,223.94
  5. Step 5: Solve for x
    x = 8,184,223.94/4,131.57
  6. Step 6: Final answer
    x = 1,980.90

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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.