Home / 3,979.14-5,489.92-2,300.32

Finding the Fourth Proportional to 3,979.14, 5,489.92 and 2,300.32

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Solution

The fourth proportional to 3,979.14, 5,489.92 and 2,300.32 is: 3,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.14 : 5,489.92 = 2,300.32 : x
  2. Step 2: Convert to fraction form
    3,979.14/5,489.92 = 2,300.32/x
  3. Step 3: Cross multiply
    3,979.14x = 5,489.92 × 2,300.32
  4. Step 4: Simplify right side
    3,979.14x = 12,628,572.77
  5. Step 5: Solve for x
    x = 12,628,572.77/3,979.14
  6. Step 6: Final answer
    x = 3,173.69

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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.