Home / 3,966.86-5,474.08-2,198.45

Finding the Fourth Proportional to 3,966.86, 5,474.08 and 2,198.45

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Solution

The fourth proportional to 3,966.86, 5,474.08 and 2,198.45 is: 3,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.86 : 5,474.08 = 2,198.45 : x
  2. Step 2: Convert to fraction form
    3,966.86/5,474.08 = 2,198.45/x
  3. Step 3: Cross multiply
    3,966.86x = 5,474.08 × 2,198.45
  4. Step 4: Simplify right side
    3,966.86x = 12,034,491.18
  5. Step 5: Solve for x
    x = 12,034,491.18/3,966.86
  6. Step 6: Final answer
    x = 3,033.76

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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.