Home / 5,618.82-7,755.78-3,260.51

Finding the Fourth Proportional to 5,618.82, 7,755.78 and 3,260.51

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Solution

The fourth proportional to 5,618.82, 7,755.78 and 3,260.51 is: 4,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.82 : 7,755.78 = 3,260.51 : x
  2. Step 2: Convert to fraction form
    5,618.82/7,755.78 = 3,260.51/x
  3. Step 3: Cross multiply
    5,618.82x = 7,755.78 × 3,260.51
  4. Step 4: Simplify right side
    5,618.82x = 25,287,759.47
  5. Step 5: Solve for x
    x = 25,287,759.47/5,618.82
  6. Step 6: Final answer
    x = 4,500.55

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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.