Home / 2,679.60-4,016.51-1,118.43

Finding the Fourth Proportional to 2,679.60, 4,016.51 and 1,118.43

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Solution

The fourth proportional to 2,679.60, 4,016.51 and 1,118.43 is: 1,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.60 : 4,016.51 = 1,118.43 : x
  2. Step 2: Convert to fraction form
    2,679.60/4,016.51 = 1,118.43/x
  3. Step 3: Cross multiply
    2,679.60x = 4,016.51 × 1,118.43
  4. Step 4: Simplify right side
    2,679.60x = 4,492,179.69
  5. Step 5: Solve for x
    x = 4,492,179.69/2,679.60
  6. Step 6: Final answer
    x = 1,676.44

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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.