Home / 2,609.32-3,916.20-1,377.62

Finding the Fourth Proportional to 2,609.32, 3,916.20 and 1,377.62

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Solution

The fourth proportional to 2,609.32, 3,916.20 and 1,377.62 is: 2,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.32 : 3,916.20 = 1,377.62 : x
  2. Step 2: Convert to fraction form
    2,609.32/3,916.20 = 1,377.62/x
  3. Step 3: Cross multiply
    2,609.32x = 3,916.20 × 1,377.62
  4. Step 4: Simplify right side
    2,609.32x = 5,395,035.44
  5. Step 5: Solve for x
    x = 5,395,035.44/2,609.32
  6. Step 6: Final answer
    x = 2,067.60

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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.