Home / 2,755.20-3,800.82-1,707.12

Finding the Fourth Proportional to 2,755.20, 3,800.82 and 1,707.12

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Solution

The fourth proportional to 2,755.20, 3,800.82 and 1,707.12 is: 2,354.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.20 : 3,800.82 = 1,707.12 : x
  2. Step 2: Convert to fraction form
    2,755.20/3,800.82 = 1,707.12/x
  3. Step 3: Cross multiply
    2,755.20x = 3,800.82 × 1,707.12
  4. Step 4: Simplify right side
    2,755.20x = 6,488,455.84
  5. Step 5: Solve for x
    x = 6,488,455.84/2,755.20
  6. Step 6: Final answer
    x = 2,354.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.