Home / 5,177.10-7,766.82-2,255.70

Finding the Fourth Proportional to 5,177.10, 7,766.82 and 2,255.70

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Solution

The fourth proportional to 5,177.10, 7,766.82 and 2,255.70 is: 3,384.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.10 : 7,766.82 = 2,255.70 : x
  2. Step 2: Convert to fraction form
    5,177.10/7,766.82 = 2,255.70/x
  3. Step 3: Cross multiply
    5,177.10x = 7,766.82 × 2,255.70
  4. Step 4: Simplify right side
    5,177.10x = 17,519,615.87
  5. Step 5: Solve for x
    x = 17,519,615.87/5,177.10
  6. Step 6: Final answer
    x = 3,384.06

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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.