Home / 2,542.07-3,814.34-1,387.79

Finding the Fourth Proportional to 2,542.07, 3,814.34 and 1,387.79

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Solution

The fourth proportional to 2,542.07, 3,814.34 and 1,387.79 is: 2,082.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,542.07 : 3,814.34 = 1,387.79 : x
  2. Step 2: Convert to fraction form
    2,542.07/3,814.34 = 1,387.79/x
  3. Step 3: Cross multiply
    2,542.07x = 3,814.34 × 1,387.79
  4. Step 4: Simplify right side
    2,542.07x = 5,293,495.97
  5. Step 5: Solve for x
    x = 5,293,495.97/2,542.07
  6. Step 6: Final answer
    x = 2,082.36

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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.