Home / 1,418.08-1,956.80-796.96

Finding the Fourth Proportional to 1,418.08, 1,956.80 and 796.96

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Solution

The fourth proportional to 1,418.08, 1,956.80 and 796.96 is: 1,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.08 : 1,956.80 = 796.96 : x
  2. Step 2: Convert to fraction form
    1,418.08/1,956.80 = 796.96/x
  3. Step 3: Cross multiply
    1,418.08x = 1,956.80 × 796.96
  4. Step 4: Simplify right side
    1,418.08x = 1,559,491.33
  5. Step 5: Solve for x
    x = 1,559,491.33/1,418.08
  6. Step 6: Final answer
    x = 1,099.72

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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.