Home / 3,613.55-5,422.14-1,423.85

Finding the Fourth Proportional to 3,613.55, 5,422.14 and 1,423.85

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Solution

The fourth proportional to 3,613.55, 5,422.14 and 1,423.85 is: 2,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.55 : 5,422.14 = 1,423.85 : x
  2. Step 2: Convert to fraction form
    3,613.55/5,422.14 = 1,423.85/x
  3. Step 3: Cross multiply
    3,613.55x = 5,422.14 × 1,423.85
  4. Step 4: Simplify right side
    3,613.55x = 7,720,286.93
  5. Step 5: Solve for x
    x = 7,720,286.93/3,613.55
  6. Step 6: Final answer
    x = 2,136.49

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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.