Home / 2,079.78-2,869.92-1,195.44

Finding the Fourth Proportional to 2,079.78, 2,869.92 and 1,195.44

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Solution

The fourth proportional to 2,079.78, 2,869.92 and 1,195.44 is: 1,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.78 : 2,869.92 = 1,195.44 : x
  2. Step 2: Convert to fraction form
    2,079.78/2,869.92 = 1,195.44/x
  3. Step 3: Cross multiply
    2,079.78x = 2,869.92 × 1,195.44
  4. Step 4: Simplify right side
    2,079.78x = 3,430,817.16
  5. Step 5: Solve for x
    x = 3,430,817.16/2,079.78
  6. Step 6: Final answer
    x = 1,649.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.