Home / 5,487.09-8,231.91-1,591.38

Finding the Fourth Proportional to 5,487.09, 8,231.91 and 1,591.38

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Solution

The fourth proportional to 5,487.09, 8,231.91 and 1,591.38 is: 2,387.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.09 : 8,231.91 = 1,591.38 : x
  2. Step 2: Convert to fraction form
    5,487.09/8,231.91 = 1,591.38/x
  3. Step 3: Cross multiply
    5,487.09x = 8,231.91 × 1,591.38
  4. Step 4: Simplify right side
    5,487.09x = 13,100,096.94
  5. Step 5: Solve for x
    x = 13,100,096.94/5,487.09
  6. Step 6: Final answer
    x = 2,387.44

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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.