Home / 2,637.90-3,640.50-1,519.20

Finding the Fourth Proportional to 2,637.90, 3,640.50 and 1,519.20

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Solution

The fourth proportional to 2,637.90, 3,640.50 and 1,519.20 is: 2,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.90 : 3,640.50 = 1,519.20 : x
  2. Step 2: Convert to fraction form
    2,637.90/3,640.50 = 1,519.20/x
  3. Step 3: Cross multiply
    2,637.90x = 3,640.50 × 1,519.20
  4. Step 4: Simplify right side
    2,637.90x = 5,530,647.60
  5. Step 5: Solve for x
    x = 5,530,647.60/2,637.90
  6. Step 6: Final answer
    x = 2,096.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.