Home / 5,211.54-7,813.82-2,872.67

Finding the Fourth Proportional to 5,211.54, 7,813.82 and 2,872.67

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Solution

The fourth proportional to 5,211.54, 7,813.82 and 2,872.67 is: 4,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.54 : 7,813.82 = 2,872.67 : x
  2. Step 2: Convert to fraction form
    5,211.54/7,813.82 = 2,872.67/x
  3. Step 3: Cross multiply
    5,211.54x = 7,813.82 × 2,872.67
  4. Step 4: Simplify right side
    5,211.54x = 22,446,494.41
  5. Step 5: Solve for x
    x = 22,446,494.41/5,211.54
  6. Step 6: Final answer
    x = 4,307.08

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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.