Home / 5,447.80-8,160.90-3,136.60

Finding the Fourth Proportional to 5,447.80, 8,160.90 and 3,136.60

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Solution

The fourth proportional to 5,447.80, 8,160.90 and 3,136.60 is: 4,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.80 : 8,160.90 = 3,136.60 : x
  2. Step 2: Convert to fraction form
    5,447.80/8,160.90 = 3,136.60/x
  3. Step 3: Cross multiply
    5,447.80x = 8,160.90 × 3,136.60
  4. Step 4: Simplify right side
    5,447.80x = 25,597,478.94
  5. Step 5: Solve for x
    x = 25,597,478.94/5,447.80
  6. Step 6: Final answer
    x = 4,698.68

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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.