Home / 2,419.82-3,339.36-1,371.88

Finding the Fourth Proportional to 2,419.82, 3,339.36 and 1,371.88

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Solution

The fourth proportional to 2,419.82, 3,339.36 and 1,371.88 is: 1,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.82 : 3,339.36 = 1,371.88 : x
  2. Step 2: Convert to fraction form
    2,419.82/3,339.36 = 1,371.88/x
  3. Step 3: Cross multiply
    2,419.82x = 3,339.36 × 1,371.88
  4. Step 4: Simplify right side
    2,419.82x = 4,581,177.64
  5. Step 5: Solve for x
    x = 4,581,177.64/2,419.82
  6. Step 6: Final answer
    x = 1,893.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.