Home / 5,150.20-7,725.84-2,228.80

Finding the Fourth Proportional to 5,150.20, 7,725.84 and 2,228.80

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Solution

The fourth proportional to 5,150.20, 7,725.84 and 2,228.80 is: 3,343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.20 : 7,725.84 = 2,228.80 : x
  2. Step 2: Convert to fraction form
    5,150.20/7,725.84 = 2,228.80/x
  3. Step 3: Cross multiply
    5,150.20x = 7,725.84 × 2,228.80
  4. Step 4: Simplify right side
    5,150.20x = 17,219,352.19
  5. Step 5: Solve for x
    x = 17,219,352.19/5,150.20
  6. Step 6: Final answer
    x = 3,343.43

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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.