Home / 2,419.88-3,339.70-1,372.28

Finding the Fourth Proportional to 2,419.88, 3,339.70 and 1,372.28

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Solution

The fourth proportional to 2,419.88, 3,339.70 and 1,372.28 is: 1,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.88 : 3,339.70 = 1,372.28 : x
  2. Step 2: Convert to fraction form
    2,419.88/3,339.70 = 1,372.28/x
  3. Step 3: Cross multiply
    2,419.88x = 3,339.70 × 1,372.28
  4. Step 4: Simplify right side
    2,419.88x = 4,582,983.39
  5. Step 5: Solve for x
    x = 4,582,983.39/2,419.88
  6. Step 6: Final answer
    x = 1,893.89

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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.