Home / 2,519.11-3,778.37-670.35

Finding the Fourth Proportional to 2,519.11, 3,778.37 and 670.35

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Solution

The fourth proportional to 2,519.11, 3,778.37 and 670.35 is: 1,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.11 : 3,778.37 = 670.35 : x
  2. Step 2: Convert to fraction form
    2,519.11/3,778.37 = 670.35/x
  3. Step 3: Cross multiply
    2,519.11x = 3,778.37 × 670.35
  4. Step 4: Simplify right side
    2,519.11x = 2,532,830.33
  5. Step 5: Solve for x
    x = 2,532,830.33/2,519.11
  6. Step 6: Final answer
    x = 1,005.45

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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.