Home / 1,306.89-1,960.35-441.27

Finding the Fourth Proportional to 1,306.89, 1,960.35 and 441.27

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Solution

The fourth proportional to 1,306.89, 1,960.35 and 441.27 is: 661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.89 : 1,960.35 = 441.27 : x
  2. Step 2: Convert to fraction form
    1,306.89/1,960.35 = 441.27/x
  3. Step 3: Cross multiply
    1,306.89x = 1,960.35 × 441.27
  4. Step 4: Simplify right side
    1,306.89x = 865,043.64
  5. Step 5: Solve for x
    x = 865,043.64/1,306.89
  6. Step 6: Final answer
    x = 661.91

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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.