Home / 5,585.36-8,378.01-2,122.61

Finding the Fourth Proportional to 5,585.36, 8,378.01 and 2,122.61

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Solution

The fourth proportional to 5,585.36, 8,378.01 and 2,122.61 is: 3,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.36 : 8,378.01 = 2,122.61 : x
  2. Step 2: Convert to fraction form
    5,585.36/8,378.01 = 2,122.61/x
  3. Step 3: Cross multiply
    5,585.36x = 8,378.01 × 2,122.61
  4. Step 4: Simplify right side
    5,585.36x = 17,783,205.92
  5. Step 5: Solve for x
    x = 17,783,205.92/5,585.36
  6. Step 6: Final answer
    x = 3,183.90

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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.