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Finding the Fourth Proportional to 4,786.92, 6,607.80 and 3,219.48

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Solution

The fourth proportional to 4,786.92, 6,607.80 and 3,219.48 is: 4,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.92 : 6,607.80 = 3,219.48 : x
  2. Step 2: Convert to fraction form
    4,786.92/6,607.80 = 3,219.48/x
  3. Step 3: Cross multiply
    4,786.92x = 6,607.80 × 3,219.48
  4. Step 4: Simplify right side
    4,786.92x = 21,273,679.94
  5. Step 5: Solve for x
    x = 21,273,679.94/4,786.92
  6. Step 6: Final answer
    x = 4,444.13

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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.