Home / 5,431.94-8,145.80-2,313.41

Finding the Fourth Proportional to 5,431.94, 8,145.80 and 2,313.41

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Solution

The fourth proportional to 5,431.94, 8,145.80 and 2,313.41 is: 3,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.94 : 8,145.80 = 2,313.41 : x
  2. Step 2: Convert to fraction form
    5,431.94/8,145.80 = 2,313.41/x
  3. Step 3: Cross multiply
    5,431.94x = 8,145.80 × 2,313.41
  4. Step 4: Simplify right side
    5,431.94x = 18,844,575.18
  5. Step 5: Solve for x
    x = 18,844,575.18/5,431.94
  6. Step 6: Final answer
    x = 3,469.22

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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.