Home / 2,629.91-3,941.42-1,394.70

Finding the Fourth Proportional to 2,629.91, 3,941.42 and 1,394.70

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Solution

The fourth proportional to 2,629.91, 3,941.42 and 1,394.70 is: 2,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.91 : 3,941.42 = 1,394.70 : x
  2. Step 2: Convert to fraction form
    2,629.91/3,941.42 = 1,394.70/x
  3. Step 3: Cross multiply
    2,629.91x = 3,941.42 × 1,394.70
  4. Step 4: Simplify right side
    2,629.91x = 5,497,091.50
  5. Step 5: Solve for x
    x = 5,497,091.50/2,629.91
  6. Step 6: Final answer
    x = 2,090.22

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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.