Home / 1,624.25-2,436.38-1,279.43

Finding the Fourth Proportional to 1,624.25, 2,436.38 and 1,279.43

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Solution

The fourth proportional to 1,624.25, 2,436.38 and 1,279.43 is: 1,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.25 : 2,436.38 = 1,279.43 : x
  2. Step 2: Convert to fraction form
    1,624.25/2,436.38 = 1,279.43/x
  3. Step 3: Cross multiply
    1,624.25x = 2,436.38 × 1,279.43
  4. Step 4: Simplify right side
    1,624.25x = 3,117,173.02
  5. Step 5: Solve for x
    x = 3,117,173.02/1,624.25
  6. Step 6: Final answer
    x = 1,919.14

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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.