Home / 5,172.54-7,758.20-1,474.70

Finding the Fourth Proportional to 5,172.54, 7,758.20 and 1,474.70

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Solution

The fourth proportional to 5,172.54, 7,758.20 and 1,474.70 is: 2,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.54 : 7,758.20 = 1,474.70 : x
  2. Step 2: Convert to fraction form
    5,172.54/7,758.20 = 1,474.70/x
  3. Step 3: Cross multiply
    5,172.54x = 7,758.20 × 1,474.70
  4. Step 4: Simplify right side
    5,172.54x = 11,440,971.38
  5. Step 5: Solve for x
    x = 11,440,971.38/5,172.54
  6. Step 6: Final answer
    x = 2,211.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.