Home / 2,519.55-3,778.97-670.50

Finding the Fourth Proportional to 2,519.55, 3,778.97 and 670.50

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Solution

The fourth proportional to 2,519.55, 3,778.97 and 670.50 is: 1,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.55 : 3,778.97 = 670.50 : x
  2. Step 2: Convert to fraction form
    2,519.55/3,778.97 = 670.50/x
  3. Step 3: Cross multiply
    2,519.55x = 3,778.97 × 670.50
  4. Step 4: Simplify right side
    2,519.55x = 2,533,796.03
  5. Step 5: Solve for x
    x = 2,533,796.03/2,519.55
  6. Step 6: Final answer
    x = 1,005.65

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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.