Home / 1,226.04-1,691.94-960.80

Finding the Fourth Proportional to 1,226.04, 1,691.94 and 960.80

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Solution

The fourth proportional to 1,226.04, 1,691.94 and 960.80 is: 1,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.04 : 1,691.94 = 960.80 : x
  2. Step 2: Convert to fraction form
    1,226.04/1,691.94 = 960.80/x
  3. Step 3: Cross multiply
    1,226.04x = 1,691.94 × 960.80
  4. Step 4: Simplify right side
    1,226.04x = 1,625,615.95
  5. Step 5: Solve for x
    x = 1,625,615.95/1,226.04
  6. Step 6: Final answer
    x = 1,325.91

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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.