Home / 3,979.73-5,953.13-3,618.88

Finding the Fourth Proportional to 3,979.73, 5,953.13 and 3,618.88

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Solution

The fourth proportional to 3,979.73, 5,953.13 and 3,618.88 is: 5,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.73 : 5,953.13 = 3,618.88 : x
  2. Step 2: Convert to fraction form
    3,979.73/5,953.13 = 3,618.88/x
  3. Step 3: Cross multiply
    3,979.73x = 5,953.13 × 3,618.88
  4. Step 4: Simplify right side
    3,979.73x = 21,543,643.69
  5. Step 5: Solve for x
    x = 21,543,643.69/3,979.73
  6. Step 6: Final answer
    x = 5,413.34

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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.