Home / 1,942.60-2,909.26-1,119.15

Finding the Fourth Proportional to 1,942.60, 2,909.26 and 1,119.15

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Solution

The fourth proportional to 1,942.60, 2,909.26 and 1,119.15 is: 1,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.60 : 2,909.26 = 1,119.15 : x
  2. Step 2: Convert to fraction form
    1,942.60/2,909.26 = 1,119.15/x
  3. Step 3: Cross multiply
    1,942.60x = 2,909.26 × 1,119.15
  4. Step 4: Simplify right side
    1,942.60x = 3,255,898.33
  5. Step 5: Solve for x
    x = 3,255,898.33/1,942.60
  6. Step 6: Final answer
    x = 1,676.05

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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.