Home / 5,425.48-8,138.09-2,503.78

Finding the Fourth Proportional to 5,425.48, 8,138.09 and 2,503.78

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Solution

The fourth proportional to 5,425.48, 8,138.09 and 2,503.78 is: 3,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.48 : 8,138.09 = 2,503.78 : x
  2. Step 2: Convert to fraction form
    5,425.48/8,138.09 = 2,503.78/x
  3. Step 3: Cross multiply
    5,425.48x = 8,138.09 × 2,503.78
  4. Step 4: Simplify right side
    5,425.48x = 20,375,958.81
  5. Step 5: Solve for x
    x = 20,375,958.81/5,425.48
  6. Step 6: Final answer
    x = 3,755.60

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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.