Home / 8,133.38-12,198.99-2,290.45

Finding the Fourth Proportional to 8,133.38, 12,198.99 and 2,290.45

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Solution

The fourth proportional to 8,133.38, 12,198.99 and 2,290.45 is: 3,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.38 : 12,198.99 = 2,290.45 : x
  2. Step 2: Convert to fraction form
    8,133.38/12,198.99 = 2,290.45/x
  3. Step 3: Cross multiply
    8,133.38x = 12,198.99 × 2,290.45
  4. Step 4: Simplify right side
    8,133.38x = 27,941,154.74
  5. Step 5: Solve for x
    x = 27,941,154.74/8,133.38
  6. Step 6: Final answer
    x = 3,435.37

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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.