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Finding the Fourth Proportional to 2,570.97, 3,854.07 and 1,399.26

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Solution

The fourth proportional to 2,570.97, 3,854.07 and 1,399.26 is: 2,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.97 : 3,854.07 = 1,399.26 : x
  2. Step 2: Convert to fraction form
    2,570.97/3,854.07 = 1,399.26/x
  3. Step 3: Cross multiply
    2,570.97x = 3,854.07 × 1,399.26
  4. Step 4: Simplify right side
    2,570.97x = 5,392,845.99
  5. Step 5: Solve for x
    x = 5,392,845.99/2,570.97
  6. Step 6: Final answer
    x = 2,097.59

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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.