Home / 2,644.68-3,959.67-1,339.74

Finding the Fourth Proportional to 2,644.68, 3,959.67 and 1,339.74

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Solution

The fourth proportional to 2,644.68, 3,959.67 and 1,339.74 is: 2,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.68 : 3,959.67 = 1,339.74 : x
  2. Step 2: Convert to fraction form
    2,644.68/3,959.67 = 1,339.74/x
  3. Step 3: Cross multiply
    2,644.68x = 3,959.67 × 1,339.74
  4. Step 4: Simplify right side
    2,644.68x = 5,304,928.29
  5. Step 5: Solve for x
    x = 5,304,928.29/2,644.68
  6. Step 6: Final answer
    x = 2,005.89

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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.