Home / 5,172.76-7,758.60-1,474.75

Finding the Fourth Proportional to 5,172.76, 7,758.60 and 1,474.75

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Solution

The fourth proportional to 5,172.76, 7,758.60 and 1,474.75 is: 2,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.76 : 7,758.60 = 1,474.75 : x
  2. Step 2: Convert to fraction form
    5,172.76/7,758.60 = 1,474.75/x
  3. Step 3: Cross multiply
    5,172.76x = 7,758.60 × 1,474.75
  4. Step 4: Simplify right side
    5,172.76x = 11,441,995.35
  5. Step 5: Solve for x
    x = 11,441,995.35/5,172.76
  6. Step 6: Final answer
    x = 2,211.97

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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.