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Finding the Fourth Proportional to 4,672.92, 6,448.36 and 2,786.64

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Solution

The fourth proportional to 4,672.92, 6,448.36 and 2,786.64 is: 3,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.92 : 6,448.36 = 2,786.64 : x
  2. Step 2: Convert to fraction form
    4,672.92/6,448.36 = 2,786.64/x
  3. Step 3: Cross multiply
    4,672.92x = 6,448.36 × 2,786.64
  4. Step 4: Simplify right side
    4,672.92x = 17,969,257.91
  5. Step 5: Solve for x
    x = 17,969,257.91/4,672.92
  6. Step 6: Final answer
    x = 3,845.40

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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.