Home / 5,379.21-8,072.46-2,607.12

Finding the Fourth Proportional to 5,379.21, 8,072.46 and 2,607.12

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Solution

The fourth proportional to 5,379.21, 8,072.46 and 2,607.12 is: 3,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.21 : 8,072.46 = 2,607.12 : x
  2. Step 2: Convert to fraction form
    5,379.21/8,072.46 = 2,607.12/x
  3. Step 3: Cross multiply
    5,379.21x = 8,072.46 × 2,607.12
  4. Step 4: Simplify right side
    5,379.21x = 21,045,871.92
  5. Step 5: Solve for x
    x = 21,045,871.92/5,379.21
  6. Step 6: Final answer
    x = 3,912.45

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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.