Home / 6,471.62-9,704.36-2,087.90

Finding the Fourth Proportional to 6,471.62, 9,704.36 and 2,087.90

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Solution

The fourth proportional to 6,471.62, 9,704.36 and 2,087.90 is: 3,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.62 : 9,704.36 = 2,087.90 : x
  2. Step 2: Convert to fraction form
    6,471.62/9,704.36 = 2,087.90/x
  3. Step 3: Cross multiply
    6,471.62x = 9,704.36 × 2,087.90
  4. Step 4: Simplify right side
    6,471.62x = 20,261,733.24
  5. Step 5: Solve for x
    x = 20,261,733.24/6,471.62
  6. Step 6: Final answer
    x = 3,130.86

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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.