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Finding the Fourth Proportional to 4,479.38, 6,721.44 and 3,256.88

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Solution

The fourth proportional to 4,479.38, 6,721.44 and 3,256.88 is: 4,887.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.38 : 6,721.44 = 3,256.88 : x
  2. Step 2: Convert to fraction form
    4,479.38/6,721.44 = 3,256.88/x
  3. Step 3: Cross multiply
    4,479.38x = 6,721.44 × 3,256.88
  4. Step 4: Simplify right side
    4,479.38x = 21,890,923.51
  5. Step 5: Solve for x
    x = 21,890,923.51/4,479.38
  6. Step 6: Final answer
    x = 4,887.04

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1.5x scale

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.