Home / 5,811.98-8,721.67-2,113.85

Finding the Fourth Proportional to 5,811.98, 8,721.67 and 2,113.85

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Solution

The fourth proportional to 5,811.98, 8,721.67 and 2,113.85 is: 3,172.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.98 : 8,721.67 = 2,113.85 : x
  2. Step 2: Convert to fraction form
    5,811.98/8,721.67 = 2,113.85/x
  3. Step 3: Cross multiply
    5,811.98x = 8,721.67 × 2,113.85
  4. Step 4: Simplify right side
    5,811.98x = 18,436,302.13
  5. Step 5: Solve for x
    x = 18,436,302.13/5,811.98
  6. Step 6: Final answer
    x = 3,172.12

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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.