Home / 5,351.70-8,025.46-2,145

Finding the Fourth Proportional to 5,351.70, 8,025.46 and 2,145

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Solution

The fourth proportional to 5,351.70, 8,025.46 and 2,145 is: 3,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.70 : 8,025.46 = 2,145 : x
  2. Step 2: Convert to fraction form
    5,351.70/8,025.46 = 2,145/x
  3. Step 3: Cross multiply
    5,351.70x = 8,025.46 × 2,145
  4. Step 4: Simplify right side
    5,351.70x = 17,214,611.70
  5. Step 5: Solve for x
    x = 17,214,611.70/5,351.70
  6. Step 6: Final answer
    x = 3,216.66

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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.