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Finding the Fourth Proportional to 3,086.92, 4,621.98 and 1,622.92

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Solution

The fourth proportional to 3,086.92, 4,621.98 and 1,622.92 is: 2,429.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.92 : 4,621.98 = 1,622.92 : x
  2. Step 2: Convert to fraction form
    3,086.92/4,621.98 = 1,622.92/x
  3. Step 3: Cross multiply
    3,086.92x = 4,621.98 × 1,622.92
  4. Step 4: Simplify right side
    3,086.92x = 7,501,103.78
  5. Step 5: Solve for x
    x = 7,501,103.78/3,086.92
  6. Step 6: Final answer
    x = 2,429.96

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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.