Home / 3,613.38-5,416.41-1,423.65

Finding the Fourth Proportional to 3,613.38, 5,416.41 and 1,423.65

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Solution

The fourth proportional to 3,613.38, 5,416.41 and 1,423.65 is: 2,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.38 : 5,416.41 = 1,423.65 : x
  2. Step 2: Convert to fraction form
    3,613.38/5,416.41 = 1,423.65/x
  3. Step 3: Cross multiply
    3,613.38x = 5,416.41 × 1,423.65
  4. Step 4: Simplify right side
    3,613.38x = 7,711,072.10
  5. Step 5: Solve for x
    x = 7,711,072.10/3,613.38
  6. Step 6: Final answer
    x = 2,134.03

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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.