Home / 2,883.45-3,979.68-2,261.37

Finding the Fourth Proportional to 2,883.45, 3,979.68 and 2,261.37

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Solution

The fourth proportional to 2,883.45, 3,979.68 and 2,261.37 is: 3,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.45 : 3,979.68 = 2,261.37 : x
  2. Step 2: Convert to fraction form
    2,883.45/3,979.68 = 2,261.37/x
  3. Step 3: Cross multiply
    2,883.45x = 3,979.68 × 2,261.37
  4. Step 4: Simplify right side
    2,883.45x = 8,999,497.76
  5. Step 5: Solve for x
    x = 8,999,497.76/2,883.45
  6. Step 6: Final answer
    x = 3,121.09

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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.