Home / 3,403.35-5,105.03-938.45

Finding the Fourth Proportional to 3,403.35, 5,105.03 and 938.45

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Solution

The fourth proportional to 3,403.35, 5,105.03 and 938.45 is: 1,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.35 : 5,105.03 = 938.45 : x
  2. Step 2: Convert to fraction form
    3,403.35/5,105.03 = 938.45/x
  3. Step 3: Cross multiply
    3,403.35x = 5,105.03 × 938.45
  4. Step 4: Simplify right side
    3,403.35x = 4,790,823.47
  5. Step 5: Solve for x
    x = 4,790,823.47/3,403.35
  6. Step 6: Final answer
    x = 1,407.68

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Similar ratio
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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.