Home / 3,697.80-5,532.81-2,211.55

Finding the Fourth Proportional to 3,697.80, 5,532.81 and 2,211.55

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Solution

The fourth proportional to 3,697.80, 5,532.81 and 2,211.55 is: 3,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,697.80 : 5,532.81 = 2,211.55 : x
  2. Step 2: Convert to fraction form
    3,697.80/5,532.81 = 2,211.55/x
  3. Step 3: Cross multiply
    3,697.80x = 5,532.81 × 2,211.55
  4. Step 4: Simplify right side
    3,697.80x = 12,236,094.95
  5. Step 5: Solve for x
    x = 12,236,094.95/3,697.80
  6. Step 6: Final answer
    x = 3,309.02

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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.