Home / 3,749.38-5,136.63-3,609.20

Finding the Fourth Proportional to 3,749.38, 5,136.63 and 3,609.20

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Solution

The fourth proportional to 3,749.38, 5,136.63 and 3,609.20 is: 4,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.38 : 5,136.63 = 3,609.20 : x
  2. Step 2: Convert to fraction form
    3,749.38/5,136.63 = 3,609.20/x
  3. Step 3: Cross multiply
    3,749.38x = 5,136.63 × 3,609.20
  4. Step 4: Simplify right side
    3,749.38x = 18,539,081.27
  5. Step 5: Solve for x
    x = 18,539,081.27/3,749.38
  6. Step 6: Final answer
    x = 4,944.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.