Home / 7,489.92-11,228.40-3,591.36

Finding the Fourth Proportional to 7,489.92, 11,228.40 and 3,591.36

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Solution

The fourth proportional to 7,489.92, 11,228.40 and 3,591.36 is: 5,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.92 : 11,228.40 = 3,591.36 : x
  2. Step 2: Convert to fraction form
    7,489.92/11,228.40 = 3,591.36/x
  3. Step 3: Cross multiply
    7,489.92x = 11,228.40 × 3,591.36
  4. Step 4: Simplify right side
    7,489.92x = 40,325,226.62
  5. Step 5: Solve for x
    x = 40,325,226.62/7,489.92
  6. Step 6: Final answer
    x = 5,383.93

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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.