Home / 3,780.20-5,213.28-2,584.64

Finding the Fourth Proportional to 3,780.20, 5,213.28 and 2,584.64

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Solution

The fourth proportional to 3,780.20, 5,213.28 and 2,584.64 is: 3,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.20 : 5,213.28 = 2,584.64 : x
  2. Step 2: Convert to fraction form
    3,780.20/5,213.28 = 2,584.64/x
  3. Step 3: Cross multiply
    3,780.20x = 5,213.28 × 2,584.64
  4. Step 4: Simplify right side
    3,780.20x = 13,474,452.02
  5. Step 5: Solve for x
    x = 13,474,452.02/3,780.20
  6. Step 6: Final answer
    x = 3,564.48

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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.