Home / 2,979.21-4,468.57-1,004.79

Finding the Fourth Proportional to 2,979.21, 4,468.57 and 1,004.79

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Solution

The fourth proportional to 2,979.21, 4,468.57 and 1,004.79 is: 1,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.21 : 4,468.57 = 1,004.79 : x
  2. Step 2: Convert to fraction form
    2,979.21/4,468.57 = 1,004.79/x
  3. Step 3: Cross multiply
    2,979.21x = 4,468.57 × 1,004.79
  4. Step 4: Simplify right side
    2,979.21x = 4,489,971.94
  5. Step 5: Solve for x
    x = 4,489,971.94/2,979.21
  6. Step 6: Final answer
    x = 1,507.10

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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.