Home / 2,979.64-4,469.94-1,005.45

Finding the Fourth Proportional to 2,979.64, 4,469.94 and 1,005.45

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Solution

The fourth proportional to 2,979.64, 4,469.94 and 1,005.45 is: 1,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.64 : 4,469.94 = 1,005.45 : x
  2. Step 2: Convert to fraction form
    2,979.64/4,469.94 = 1,005.45/x
  3. Step 3: Cross multiply
    2,979.64x = 4,469.94 × 1,005.45
  4. Step 4: Simplify right side
    2,979.64x = 4,494,301.17
  5. Step 5: Solve for x
    x = 4,494,301.17/2,979.64
  6. Step 6: Final answer
    x = 1,508.34

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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.