Home / 3,238.24-4,467.88-1,979.40

Finding the Fourth Proportional to 3,238.24, 4,467.88 and 1,979.40

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Solution

The fourth proportional to 3,238.24, 4,467.88 and 1,979.40 is: 2,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.24 : 4,467.88 = 1,979.40 : x
  2. Step 2: Convert to fraction form
    3,238.24/4,467.88 = 1,979.40/x
  3. Step 3: Cross multiply
    3,238.24x = 4,467.88 × 1,979.40
  4. Step 4: Simplify right side
    3,238.24x = 8,843,721.67
  5. Step 5: Solve for x
    x = 8,843,721.67/3,238.24
  6. Step 6: Final answer
    x = 2,731.03

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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.