Home / 2,520.82-3,780.08-1,350.64

Finding the Fourth Proportional to 2,520.82, 3,780.08 and 1,350.64

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Solution

The fourth proportional to 2,520.82, 3,780.08 and 1,350.64 is: 2,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.82 : 3,780.08 = 1,350.64 : x
  2. Step 2: Convert to fraction form
    2,520.82/3,780.08 = 1,350.64/x
  3. Step 3: Cross multiply
    2,520.82x = 3,780.08 × 1,350.64
  4. Step 4: Simplify right side
    2,520.82x = 5,105,527.25
  5. Step 5: Solve for x
    x = 5,105,527.25/2,520.82
  6. Step 6: Final answer
    x = 2,025.34

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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.