Home / 2,579.06-3,869.30-1,118.43

Finding the Fourth Proportional to 2,579.06, 3,869.30 and 1,118.43

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Solution

The fourth proportional to 2,579.06, 3,869.30 and 1,118.43 is: 1,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.06 : 3,869.30 = 1,118.43 : x
  2. Step 2: Convert to fraction form
    2,579.06/3,869.30 = 1,118.43/x
  3. Step 3: Cross multiply
    2,579.06x = 3,869.30 × 1,118.43
  4. Step 4: Simplify right side
    2,579.06x = 4,327,544.00
  5. Step 5: Solve for x
    x = 4,327,544.00/2,579.06
  6. Step 6: Final answer
    x = 1,677.95

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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.