Home / 5,205.96-7,800.68-4,227.28

Finding the Fourth Proportional to 5,205.96, 7,800.68 and 4,227.28

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Solution

The fourth proportional to 5,205.96, 7,800.68 and 4,227.28 is: 6,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.96 : 7,800.68 = 4,227.28 : x
  2. Step 2: Convert to fraction form
    5,205.96/7,800.68 = 4,227.28/x
  3. Step 3: Cross multiply
    5,205.96x = 7,800.68 × 4,227.28
  4. Step 4: Simplify right side
    5,205.96x = 32,975,658.55
  5. Step 5: Solve for x
    x = 32,975,658.55/5,205.96
  6. Step 6: Final answer
    x = 6,334.21

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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.