Home / 5,490.82-8,236.20-1,330.82

Finding the Fourth Proportional to 5,490.82, 8,236.20 and 1,330.82

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Solution

The fourth proportional to 5,490.82, 8,236.20 and 1,330.82 is: 1,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.82 : 8,236.20 = 1,330.82 : x
  2. Step 2: Convert to fraction form
    5,490.82/8,236.20 = 1,330.82/x
  3. Step 3: Cross multiply
    5,490.82x = 8,236.20 × 1,330.82
  4. Step 4: Simplify right side
    5,490.82x = 10,960,899.68
  5. Step 5: Solve for x
    x = 10,960,899.68/5,490.82
  6. Step 6: Final answer
    x = 1,996.22

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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.