Home / 4,127.79-6,191.90-1,206.33

Finding the Fourth Proportional to 4,127.79, 6,191.90 and 1,206.33

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Solution

The fourth proportional to 4,127.79, 6,191.90 and 1,206.33 is: 1,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.79 : 6,191.90 = 1,206.33 : x
  2. Step 2: Convert to fraction form
    4,127.79/6,191.90 = 1,206.33/x
  3. Step 3: Cross multiply
    4,127.79x = 6,191.90 × 1,206.33
  4. Step 4: Simplify right side
    4,127.79x = 7,469,468.70
  5. Step 5: Solve for x
    x = 7,469,468.70/4,127.79
  6. Step 6: Final answer
    x = 1,809.56

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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.