Home / 5,290.55-7,939.46-2,372.12

Finding the Fourth Proportional to 5,290.55, 7,939.46 and 2,372.12

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Solution

The fourth proportional to 5,290.55, 7,939.46 and 2,372.12 is: 3,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.55 : 7,939.46 = 2,372.12 : x
  2. Step 2: Convert to fraction form
    5,290.55/7,939.46 = 2,372.12/x
  3. Step 3: Cross multiply
    5,290.55x = 7,939.46 × 2,372.12
  4. Step 4: Simplify right side
    5,290.55x = 18,833,318.09
  5. Step 5: Solve for x
    x = 18,833,318.09/5,290.55
  6. Step 6: Final answer
    x = 3,559.81

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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.