Home / 5,427.28-8,128.26-3,962.80

Finding the Fourth Proportional to 5,427.28, 8,128.26 and 3,962.80

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Solution

The fourth proportional to 5,427.28, 8,128.26 and 3,962.80 is: 5,934.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.28 : 8,128.26 = 3,962.80 : x
  2. Step 2: Convert to fraction form
    5,427.28/8,128.26 = 3,962.80/x
  3. Step 3: Cross multiply
    5,427.28x = 8,128.26 × 3,962.80
  4. Step 4: Simplify right side
    5,427.28x = 32,210,668.73
  5. Step 5: Solve for x
    x = 32,210,668.73/5,427.28
  6. Step 6: Final answer
    x = 5,934.96

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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.