Home / 3,647.80-5,466.52-2,811.70

Finding the Fourth Proportional to 3,647.80, 5,466.52 and 2,811.70

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Solution

The fourth proportional to 3,647.80, 5,466.52 and 2,811.70 is: 4,213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.80 : 5,466.52 = 2,811.70 : x
  2. Step 2: Convert to fraction form
    3,647.80/5,466.52 = 2,811.70/x
  3. Step 3: Cross multiply
    3,647.80x = 5,466.52 × 2,811.70
  4. Step 4: Simplify right side
    3,647.80x = 15,370,240.15
  5. Step 5: Solve for x
    x = 15,370,240.15/3,647.80
  6. Step 6: Final answer
    x = 4,213.56

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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.