Home / 1,704.88-2,542.39-1,689.31

Finding the Fourth Proportional to 1,704.88, 2,542.39 and 1,689.31

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Solution

The fourth proportional to 1,704.88, 2,542.39 and 1,689.31 is: 2,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.88 : 2,542.39 = 1,689.31 : x
  2. Step 2: Convert to fraction form
    1,704.88/2,542.39 = 1,689.31/x
  3. Step 3: Cross multiply
    1,704.88x = 2,542.39 × 1,689.31
  4. Step 4: Simplify right side
    1,704.88x = 4,294,872.14
  5. Step 5: Solve for x
    x = 4,294,872.14/1,704.88
  6. Step 6: Final answer
    x = 2,519.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.