Home / 4,131.80-6,197.10-1,209.80

Finding the Fourth Proportional to 4,131.80, 6,197.10 and 1,209.80

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Solution

The fourth proportional to 4,131.80, 6,197.10 and 1,209.80 is: 1,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131.80 : 6,197.10 = 1,209.80 : x
  2. Step 2: Convert to fraction form
    4,131.80/6,197.10 = 1,209.80/x
  3. Step 3: Cross multiply
    4,131.80x = 6,197.10 × 1,209.80
  4. Step 4: Simplify right side
    4,131.80x = 7,497,251.58
  5. Step 5: Solve for x
    x = 7,497,251.58/4,131.80
  6. Step 6: Final answer
    x = 1,814.52

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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.