Home / 4,128.06-6,191.82-1,206.12

Finding the Fourth Proportional to 4,128.06, 6,191.82 and 1,206.12

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Solution

The fourth proportional to 4,128.06, 6,191.82 and 1,206.12 is: 1,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.06 : 6,191.82 = 1,206.12 : x
  2. Step 2: Convert to fraction form
    4,128.06/6,191.82 = 1,206.12/x
  3. Step 3: Cross multiply
    4,128.06x = 6,191.82 × 1,206.12
  4. Step 4: Simplify right side
    4,128.06x = 7,468,077.94
  5. Step 5: Solve for x
    x = 7,468,077.94/4,128.06
  6. Step 6: Final answer
    x = 1,809.10

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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.