Home / 3,198.02-4,409.40-2,667.66

Finding the Fourth Proportional to 3,198.02, 4,409.40 and 2,667.66

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Solution

The fourth proportional to 3,198.02, 4,409.40 and 2,667.66 is: 3,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.02 : 4,409.40 = 2,667.66 : x
  2. Step 2: Convert to fraction form
    3,198.02/4,409.40 = 2,667.66/x
  3. Step 3: Cross multiply
    3,198.02x = 4,409.40 × 2,667.66
  4. Step 4: Simplify right side
    3,198.02x = 11,762,780.00
  5. Step 5: Solve for x
    x = 11,762,780.00/3,198.02
  6. Step 6: Final answer
    x = 3,678.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.