Home / 3,211.38-4,817.34-1,131.57

Finding the Fourth Proportional to 3,211.38, 4,817.34 and 1,131.57

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Solution

The fourth proportional to 3,211.38, 4,817.34 and 1,131.57 is: 1,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.38 : 4,817.34 = 1,131.57 : x
  2. Step 2: Convert to fraction form
    3,211.38/4,817.34 = 1,131.57/x
  3. Step 3: Cross multiply
    3,211.38x = 4,817.34 × 1,131.57
  4. Step 4: Simplify right side
    3,211.38x = 5,451,157.42
  5. Step 5: Solve for x
    x = 5,451,157.42/3,211.38
  6. Step 6: Final answer
    x = 1,697.45

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1.5x scale

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.