Home / 2,630.20-3,629.78-1,451.20

Finding the Fourth Proportional to 2,630.20, 3,629.78 and 1,451.20

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Solution

The fourth proportional to 2,630.20, 3,629.78 and 1,451.20 is: 2,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.20 : 3,629.78 = 1,451.20 : x
  2. Step 2: Convert to fraction form
    2,630.20/3,629.78 = 1,451.20/x
  3. Step 3: Cross multiply
    2,630.20x = 3,629.78 × 1,451.20
  4. Step 4: Simplify right side
    2,630.20x = 5,267,536.74
  5. Step 5: Solve for x
    x = 5,267,536.74/2,630.20
  6. Step 6: Final answer
    x = 2,002.71

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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.