Home / 4,755.45-7,147.35-3,938.97

Finding the Fourth Proportional to 4,755.45, 7,147.35 and 3,938.97

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Solution

The fourth proportional to 4,755.45, 7,147.35 and 3,938.97 is: 5,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.45 : 7,147.35 = 3,938.97 : x
  2. Step 2: Convert to fraction form
    4,755.45/7,147.35 = 3,938.97/x
  3. Step 3: Cross multiply
    4,755.45x = 7,147.35 × 3,938.97
  4. Step 4: Simplify right side
    4,755.45x = 28,153,197.23
  5. Step 5: Solve for x
    x = 28,153,197.23/4,755.45
  6. Step 6: Final answer
    x = 5,920.20

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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.