Home / 4,140.80-6,211.38-2,061.80

Finding the Fourth Proportional to 4,140.80, 6,211.38 and 2,061.80

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Solution

The fourth proportional to 4,140.80, 6,211.38 and 2,061.80 is: 3,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.80 : 6,211.38 = 2,061.80 : x
  2. Step 2: Convert to fraction form
    4,140.80/6,211.38 = 2,061.80/x
  3. Step 3: Cross multiply
    4,140.80x = 6,211.38 × 2,061.80
  4. Step 4: Simplify right side
    4,140.80x = 12,806,623.28
  5. Step 5: Solve for x
    x = 12,806,623.28/4,140.80
  6. Step 6: Final answer
    x = 3,092.79

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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.