Home / 5,477.80-8,217.90-2,190.04

Finding the Fourth Proportional to 5,477.80, 8,217.90 and 2,190.04

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Solution

The fourth proportional to 5,477.80, 8,217.90 and 2,190.04 is: 3,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.80 : 8,217.90 = 2,190.04 : x
  2. Step 2: Convert to fraction form
    5,477.80/8,217.90 = 2,190.04/x
  3. Step 3: Cross multiply
    5,477.80x = 8,217.90 × 2,190.04
  4. Step 4: Simplify right side
    5,477.80x = 17,997,529.72
  5. Step 5: Solve for x
    x = 17,997,529.72/5,477.80
  6. Step 6: Final answer
    x = 3,285.54

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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.