Home / 5,618.88-7,753.51-3,100.84

Finding the Fourth Proportional to 5,618.88, 7,753.51 and 3,100.84

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Solution

The fourth proportional to 5,618.88, 7,753.51 and 3,100.84 is: 4,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.88 : 7,753.51 = 3,100.84 : x
  2. Step 2: Convert to fraction form
    5,618.88/7,753.51 = 3,100.84/x
  3. Step 3: Cross multiply
    5,618.88x = 7,753.51 × 3,100.84
  4. Step 4: Simplify right side
    5,618.88x = 24,042,413.88
  5. Step 5: Solve for x
    x = 24,042,413.88/5,618.88
  6. Step 6: Final answer
    x = 4,278.86

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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.