Home / 5,380.28-7,425.20-3,284.80

Finding the Fourth Proportional to 5,380.28, 7,425.20 and 3,284.80

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Solution

The fourth proportional to 5,380.28, 7,425.20 and 3,284.80 is: 4,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.28 : 7,425.20 = 3,284.80 : x
  2. Step 2: Convert to fraction form
    5,380.28/7,425.20 = 3,284.80/x
  3. Step 3: Cross multiply
    5,380.28x = 7,425.20 × 3,284.80
  4. Step 4: Simplify right side
    5,380.28x = 24,390,296.96
  5. Step 5: Solve for x
    x = 24,390,296.96/5,380.28
  6. Step 6: Final answer
    x = 4,533.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.