Home / 8,213.82-12,320.52-2,290.68

Finding the Fourth Proportional to 8,213.82, 12,320.52 and 2,290.68

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Solution

The fourth proportional to 8,213.82, 12,320.52 and 2,290.68 is: 3,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.82 : 12,320.52 = 2,290.68 : x
  2. Step 2: Convert to fraction form
    8,213.82/12,320.52 = 2,290.68/x
  3. Step 3: Cross multiply
    8,213.82x = 12,320.52 × 2,290.68
  4. Step 4: Simplify right side
    8,213.82x = 28,222,368.75
  5. Step 5: Solve for x
    x = 28,222,368.75/8,213.82
  6. Step 6: Final answer
    x = 3,435.96

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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.