Home / 1,372.71-2,059.97-1,281.58

Finding the Fourth Proportional to 1,372.71, 2,059.97 and 1,281.58

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Solution

The fourth proportional to 1,372.71, 2,059.97 and 1,281.58 is: 1,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.71 : 2,059.97 = 1,281.58 : x
  2. Step 2: Convert to fraction form
    1,372.71/2,059.97 = 1,281.58/x
  3. Step 3: Cross multiply
    1,372.71x = 2,059.97 × 1,281.58
  4. Step 4: Simplify right side
    1,372.71x = 2,640,016.35
  5. Step 5: Solve for x
    x = 2,640,016.35/1,372.71
  6. Step 6: Final answer
    x = 1,923.21

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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.