Home / 2,279.87-3,418.62-1,539.45

Finding the Fourth Proportional to 2,279.87, 3,418.62 and 1,539.45

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Solution

The fourth proportional to 2,279.87, 3,418.62 and 1,539.45 is: 2,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.87 : 3,418.62 = 1,539.45 : x
  2. Step 2: Convert to fraction form
    2,279.87/3,418.62 = 1,539.45/x
  3. Step 3: Cross multiply
    2,279.87x = 3,418.62 × 1,539.45
  4. Step 4: Simplify right side
    2,279.87x = 5,262,788.79
  5. Step 5: Solve for x
    x = 5,262,788.79/2,279.87
  6. Step 6: Final answer
    x = 2,308.37

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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.