Home / 2,629.17-3,938.10-1,240.43

Finding the Fourth Proportional to 2,629.17, 3,938.10 and 1,240.43

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Solution

The fourth proportional to 2,629.17, 3,938.10 and 1,240.43 is: 1,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.17 : 3,938.10 = 1,240.43 : x
  2. Step 2: Convert to fraction form
    2,629.17/3,938.10 = 1,240.43/x
  3. Step 3: Cross multiply
    2,629.17x = 3,938.10 × 1,240.43
  4. Step 4: Simplify right side
    2,629.17x = 4,884,917.69
  5. Step 5: Solve for x
    x = 4,884,917.69/2,629.17
  6. Step 6: Final answer
    x = 1,857.97

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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.