Home / 5,439.54-8,153.82-2,149.32

Finding the Fourth Proportional to 5,439.54, 8,153.82 and 2,149.32

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Solution

The fourth proportional to 5,439.54, 8,153.82 and 2,149.32 is: 3,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.54 : 8,153.82 = 2,149.32 : x
  2. Step 2: Convert to fraction form
    5,439.54/8,153.82 = 2,149.32/x
  3. Step 3: Cross multiply
    5,439.54x = 8,153.82 × 2,149.32
  4. Step 4: Simplify right side
    5,439.54x = 17,525,168.40
  5. Step 5: Solve for x
    x = 17,525,168.40/5,439.54
  6. Step 6: Final answer
    x = 3,221.81

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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.