Home / 5,489.82-8,236.56-1,792.20

Finding the Fourth Proportional to 5,489.82, 8,236.56 and 1,792.20

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Solution

The fourth proportional to 5,489.82, 8,236.56 and 1,792.20 is: 2,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.82 : 8,236.56 = 1,792.20 : x
  2. Step 2: Convert to fraction form
    5,489.82/8,236.56 = 1,792.20/x
  3. Step 3: Cross multiply
    5,489.82x = 8,236.56 × 1,792.20
  4. Step 4: Simplify right side
    5,489.82x = 14,761,562.83
  5. Step 5: Solve for x
    x = 14,761,562.83/5,489.82
  6. Step 6: Final answer
    x = 2,688.90

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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.