Home / 5,172.20-7,757.13-1,474.35

Finding the Fourth Proportional to 5,172.20, 7,757.13 and 1,474.35

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Solution

The fourth proportional to 5,172.20, 7,757.13 and 1,474.35 is: 2,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.20 : 7,757.13 = 1,474.35 : x
  2. Step 2: Convert to fraction form
    5,172.20/7,757.13 = 1,474.35/x
  3. Step 3: Cross multiply
    5,172.20x = 7,757.13 × 1,474.35
  4. Step 4: Simplify right side
    5,172.20x = 11,436,724.62
  5. Step 5: Solve for x
    x = 11,436,724.62/5,172.20
  6. Step 6: Final answer
    x = 2,211.19

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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.