Home / 5,425.08-8,131.50-2,136.48

Finding the Fourth Proportional to 5,425.08, 8,131.50 and 2,136.48

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Solution

The fourth proportional to 5,425.08, 8,131.50 and 2,136.48 is: 3,202.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.08 : 8,131.50 = 2,136.48 : x
  2. Step 2: Convert to fraction form
    5,425.08/8,131.50 = 2,136.48/x
  3. Step 3: Cross multiply
    5,425.08x = 8,131.50 × 2,136.48
  4. Step 4: Simplify right side
    5,425.08x = 17,372,787.12
  5. Step 5: Solve for x
    x = 17,372,787.12/5,425.08
  6. Step 6: Final answer
    x = 3,202.31

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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.