Home / 8,135.66-12,202.07-2,290.88

Finding the Fourth Proportional to 8,135.66, 12,202.07 and 2,290.88

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Solution

The fourth proportional to 8,135.66, 12,202.07 and 2,290.88 is: 3,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.66 : 12,202.07 = 2,290.88 : x
  2. Step 2: Convert to fraction form
    8,135.66/12,202.07 = 2,290.88/x
  3. Step 3: Cross multiply
    8,135.66x = 12,202.07 × 2,290.88
  4. Step 4: Simplify right side
    8,135.66x = 27,953,405.66
  5. Step 5: Solve for x
    x = 27,953,405.66/8,135.66
  6. Step 6: Final answer
    x = 3,435.91

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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.