Home / 2,979.64-4,467.24-1,809.91

Finding the Fourth Proportional to 2,979.64, 4,467.24 and 1,809.91

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Solution

The fourth proportional to 2,979.64, 4,467.24 and 1,809.91 is: 2,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.64 : 4,467.24 = 1,809.91 : x
  2. Step 2: Convert to fraction form
    2,979.64/4,467.24 = 1,809.91/x
  3. Step 3: Cross multiply
    2,979.64x = 4,467.24 × 1,809.91
  4. Step 4: Simplify right side
    2,979.64x = 8,085,302.35
  5. Step 5: Solve for x
    x = 8,085,302.35/2,979.64
  6. Step 6: Final answer
    x = 2,713.52

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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.