Home / 2,512.98-3,765.11-1,211.67

Finding the Fourth Proportional to 2,512.98, 3,765.11 and 1,211.67

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Solution

The fourth proportional to 2,512.98, 3,765.11 and 1,211.67 is: 1,815.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.98 : 3,765.11 = 1,211.67 : x
  2. Step 2: Convert to fraction form
    2,512.98/3,765.11 = 1,211.67/x
  3. Step 3: Cross multiply
    2,512.98x = 3,765.11 × 1,211.67
  4. Step 4: Simplify right side
    2,512.98x = 4,562,064.78
  5. Step 5: Solve for x
    x = 4,562,064.78/2,512.98
  6. Step 6: Final answer
    x = 1,815.40

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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.