Home / 2,582.36-3,868.99-2,119.45

Finding the Fourth Proportional to 2,582.36, 3,868.99 and 2,119.45

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Solution

The fourth proportional to 2,582.36, 3,868.99 and 2,119.45 is: 3,175.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.36 : 3,868.99 = 2,119.45 : x
  2. Step 2: Convert to fraction form
    2,582.36/3,868.99 = 2,119.45/x
  3. Step 3: Cross multiply
    2,582.36x = 3,868.99 × 2,119.45
  4. Step 4: Simplify right side
    2,582.36x = 8,200,115.88
  5. Step 5: Solve for x
    x = 8,200,115.88/2,582.36
  6. Step 6: Final answer
    x = 3,175.43

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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.