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Finding the Fourth Proportional to 5,586.92, 8,380.46 and 1,638.44

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Solution

The fourth proportional to 5,586.92, 8,380.46 and 1,638.44 is: 2,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.92 : 8,380.46 = 1,638.44 : x
  2. Step 2: Convert to fraction form
    5,586.92/8,380.46 = 1,638.44/x
  3. Step 3: Cross multiply
    5,586.92x = 8,380.46 × 1,638.44
  4. Step 4: Simplify right side
    5,586.92x = 13,730,880.88
  5. Step 5: Solve for x
    x = 13,730,880.88/5,586.92
  6. Step 6: Final answer
    x = 2,457.68

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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.