Home / 2,979.14-4,467.84-1,128.92

Finding the Fourth Proportional to 2,979.14, 4,467.84 and 1,128.92

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Solution

The fourth proportional to 2,979.14, 4,467.84 and 1,128.92 is: 1,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.14 : 4,467.84 = 1,128.92 : x
  2. Step 2: Convert to fraction form
    2,979.14/4,467.84 = 1,128.92/x
  3. Step 3: Cross multiply
    2,979.14x = 4,467.84 × 1,128.92
  4. Step 4: Simplify right side
    2,979.14x = 5,043,833.93
  5. Step 5: Solve for x
    x = 5,043,833.93/2,979.14
  6. Step 6: Final answer
    x = 1,693.05

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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.